656955 has 24 divisors (see below), whose sum is σ = 1227408. Its totient is φ = 323136.

The previous prime is 656951. The next prime is 656959. The reversal of 656955 is 559656.

It is an interprime number because it is at equal distance from previous prime (656951) and next prime (656959).

It is not a de Polignac number, because 656955 - 2² = 656951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (656951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24 + ... + 1146.

It is an arithmetic number, because the mean of its divisors is an integer number (51142).

2⁶⁵⁶⁹⁵⁵ is an apocalyptic number.

656955 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

656955 is a deficient number, since it is larger than the sum of its proper divisors (570453).

656955 is a wasteful number, since it uses less digits than its factorization.

656955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147 (or 1144 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 656955 is about 810.5276059457. The cubic root of 656955 is about 86.9317737001.

The spelling of 656955 in words is "six hundred fifty-six thousand, nine hundred fifty-five".