5656690 has 32 divisors (see below), whose sum is σ = 11185776. Its totient is φ = 2046720.

The previous prime is 5656649. The next prime is 5656691. The reversal of 5656690 is 966565.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1375929 + 4280761 = 1173^2 + 2069^2 .

It is a super-2 number, since 2×5656690² = 63996283512200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5656691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6480 + ... + 7300.

Almost surely, 2^5656690 is an apocalyptic number.

5656690 is a deficient number, since it is larger than the sum of its proper divisors (5529086).

5656690 is a wasteful number, since it uses less digits than its factorization.

5656690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 5656690 is about 2378.3797005525. The cubic root of 5656690 is about 178.1780190998.

The spelling of 5656690 in words is "five million, six hundred fifty-six thousand, six hundred ninety".