656475 has 12 divisors (see below), whose sum is σ = 1085496. Its totient is φ = 350080.

The previous prime is 656471. The next prime is 656479. The reversal of 656475 is 574656.

656475 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (656471) and next prime (656479).

It is not a de Polignac number, because 656475 - 2² = 656471 is a prime.

656475 is strictly pandigital in base 7.

656475 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 656475.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4302 + ... + 4451.

It is an arithmetic number, because the mean of its divisors is an integer number (90458).

2⁶⁵⁶⁴⁷⁵ is an apocalyptic number.

656475 is a deficient number, since it is larger than the sum of its proper divisors (429021).

656475 is a wasteful number, since it uses less digits than its factorization.

656475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8766 (or 8761 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 656475 is about 810.2314484146. The cubic root of 656475 is about 86.9105964920.

The spelling of 656475 in words is "six hundred fifty-six thousand, four hundred seventy-five".