655992 has 32 divisors (see below), whose sum is σ = 1822800. Its totient is φ = 218592.

The previous prime is 655987. The next prime is 656023. The reversal of 655992 is 299556.

655992 is a `hidden beast` number, since 65 + 599 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 655992.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 1303 + ... + 1734.

2⁶⁵⁵⁹⁹² is an apocalyptic number.

It is an amenable number.

655992 is an abundant number, since it is smaller than the sum of its proper divisors (1166808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655992 is a wasteful number, since it uses less digits than its factorization.

655992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052 (or 3042 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 655992 is about 809.9333305896. The cubic root of 655992 is about 86.8892765041.

The spelling of 655992 in words is "six hundred fifty-five thousand, nine hundred ninety-two".