656396 has 18 divisors (see below), whose sum is σ = 1245132. Its totient is φ = 302640.

The previous prime is 656389. The next prime is 656407. The reversal of 656396 is 693656.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 656396.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191 + ... + 1161.

It is an arithmetic number, because the mean of its divisors is an integer number (69174).

2⁶⁵⁶³⁹⁶ is an apocalyptic number.

It is an amenable number.

656396 is a deficient number, since it is larger than the sum of its proper divisors (588736).

656396 is a wasteful number, since it uses less digits than its factorization.

656396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001 (or 986 counting only the distinct ones).

The product of its digits is 29160, while the sum is 35.

The square root of 656396 is about 810.1826954459. The cubic root of 656396 is about 86.9071100874.

The spelling of 656396 in words is "six hundred fifty-six thousand, three hundred ninety-six".