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3352561 = 18312

3352561 has 3 divisors (see below), whose sum is σ = 3354393. Its totient is φ = 3350730.

The previous prime is 3352537. The next prime is 3352571. The reversal of 3352561 is 1652533.

It is a happy number.

The square root of 3352561 is 1831.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1652533 = 4338431.

It is a de Polignac number, because none of the positive numbers 2k-3352561 is a prime.

It is a super-2 number, since 2×33525612 = 22479330517442, which contains 22 as substring.

It is a d-powerful number, because it can be written as 35 + 313 + 53 + 27 + 57 + 68 + 1 .

It is a Duffinian number.

3352561 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3352511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 916 + ... + 2746.

It is an arithmetic number, because the mean of its divisors is an integer number (1118131).

Almost surely, 23352561 is an apocalyptic number.

3352561 is the 1831-st square number.

3352561 is the 916-th centered octagonal number.

It is an amenable number.

3352561 is a deficient number, since it is larger than the sum of its proper divisors (1832).

3352561 is an frugal number, since it uses more digits than its factorization.

3352561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3662 (or 1831 counting only the distinct ones).

The product of its digits is 2700, while the sum is 25.

The cubic root of 3352561 is about 149.6668309073. Note that the first 3 decimals are identical.

Multiplying 3352561 by its sum of digits (25), we get a square (83814025 = 91552).

The spelling of 3352561 in words is "three million, three hundred fifty-two thousand, five hundred sixty-one".

Divisors: 1 1831 3352561