3407656 has 24 divisors (see below), whose sum is σ = 7433370. Its totient is φ = 1460256.

The previous prime is 3407647. The next prime is 3407659. The reversal of 3407656 is 6567043.

It can be written as a sum of positive squares in only one way, i.e., 3363556 + 44100 = 1834^2 + 210^2 .

It is a super-2 number, since 2×3407656² = 23224238828672, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3407659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3955 + ... + 4738.

Almost surely, 2^3407656 is an apocalyptic number.

It is an amenable number.

3407656 is an abundant number, since it is smaller than the sum of its proper divisors (4025714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3407656 is a wasteful number, since it uses less digits than its factorization.

3407656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8713 (or 8702 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 3407656 is about 1845.9837485742. The cubic root of 3407656 is about 150.4822405581.

The spelling of 3407656 in words is "three million, four hundred seven thousand, six hundred fifty-six".