3548561 has 4 divisors (see below), whose sum is σ = 3566772. Its totient is φ = 3530352.

The previous prime is 3548557. The next prime is 3548569. The reversal of 3548561 is 1658453.

It is a happy number.

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 3400336 + 148225 = 1844^2 + 385^2 .

It is a cyclic number.

It is not a de Polignac number, because 3548561 - 2² = 3548557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3548569) 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, 8810 + ... + 9203.

It is an arithmetic number, because the mean of its divisors is an integer number (891693).

Almost surely, 2^3548561 is an apocalyptic number.

It is an amenable number.

3548561 is a deficient number, since it is larger than the sum of its proper divisors (18211).

3548561 is a wasteful number, since it uses less digits than its factorization.

3548561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18210.

The product of its digits is 14400, while the sum is 32.

The square root of 3548561 is about 1883.7624584857. The cubic root of 3548561 is about 152.5284153805.

The spelling of 3548561 in words is "three million, five hundred forty-eight thousand, five hundred sixty-one".