655976 has 16 divisors (see below), whose sum is σ = 1239840. Its totient is φ = 325360.

The previous prime is 655961. The next prime is 655987. The reversal of 655976 is 679556.

It is an unprimeable number.

655976 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1091 + ... + 1581.

It is an arithmetic number, because the mean of its divisors is an integer number (77490).

2⁶⁵⁵⁹⁷⁶ is an apocalyptic number.

It is an amenable number.

655976 is a deficient number, since it is larger than the sum of its proper divisors (583864).

655976 is a wasteful number, since it uses less digits than its factorization.

655976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 660 counting only the distinct ones).

The product of its digits is 56700, while the sum is 38.

The square root of 655976 is about 809.9234531732. The cubic root of 655976 is about 86.8885700728. Note that the first 3 decimals are identical.

The spelling of 655976 in words is "six hundred fifty-five thousand, nine hundred seventy-six".