612831956 has 24 divisors (see below), whose sum is σ = 1186436160. Its totient is φ = 274635200.

The previous prime is 612831953. The next prime is 612831959. The reversal of 612831956 is 659138216.

It is an interprime number because it is at equal distance from previous prime (612831953) and next prime (612831959).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612831953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94961 + ... + 101208.

It is an arithmetic number, because the mean of its divisors is an integer number (49434840).

Almost surely, 2^612831956 is an apocalyptic number.

It is an amenable number.

612831956 is a deficient number, since it is larger than the sum of its proper divisors (573604204).

612831956 is a wasteful number, since it uses less digits than its factorization.

612831956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196255 (or 196253 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 612831956 is about 24755.4429570549. The cubic root of 612831956 is about 849.4030207303.

The spelling of 612831956 in words is "six hundred twelve million, eight hundred thirty-one thousand, nine hundred fifty-six".