656476 has 12 divisors (see below), whose sum is σ = 1154608. Its totient is φ = 326592.

The previous prime is 656471. The next prime is 656479. The reversal of 656476 is 674656.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656471) by changing a digit.

656476 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105 + ... + 1591.

2⁶⁵⁶⁴⁷⁶ is an apocalyptic number.

It is an amenable number.

656476 is a deficient number, since it is larger than the sum of its proper divisors (498132).

656476 is a wasteful number, since it uses less digits than its factorization.

656476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828 (or 826 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 656476 is about 810.2320655220. The cubic root of 656476 is about 86.9106406220.

The spelling of 656476 in words is "six hundred fifty-six thousand, four hundred seventy-six".