3522661 has 4 divisors (see below), whose sum is σ = 3533452. Its totient is φ = 3511872.

The previous prime is 3522653. The next prime is 3522667. The reversal of 3522661 is 1662253.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2461761 + 1060900 = 1569^2 + 1030^2 .

It is a cyclic number.

It is not a de Polignac number, because 3522661 - 2³ = 3522653 is a prime.

It is a Duffinian number.

3522661 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3522667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4890 + ... + 5563.

It is an arithmetic number, because the mean of its divisors is an integer number (883363).

Almost surely, 2^3522661 is an apocalyptic number.

It is an amenable number.

3522661 is a deficient number, since it is larger than the sum of its proper divisors (10791).

3522661 is a wasteful number, since it uses less digits than its factorization.

3522661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10790.

The product of its digits is 2160, while the sum is 25.

The square root of 3522661 is about 1876.8753288378. The cubic root of 3522661 is about 152.1564208075.

The spelling of 3522661 in words is "three million, five hundred twenty-two thousand, six hundred sixty-one".