916956172 has 12 divisors (see below), whose sum is σ = 1750552776. Its totient is φ = 416798240.

The previous prime is 916956167. The next prime is 916956179. The reversal of 916956172 is 271659619.

It is not an unprimeable number, because it can be changed into a prime (916956179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10419913 + ... + 10420000.

It is an arithmetic number, because the mean of its divisors is an integer number (145879398).

Almost surely, 2^916956172 is an apocalyptic number.

It is an amenable number.

916956172 is a deficient number, since it is larger than the sum of its proper divisors (833596604).

916956172 is a wasteful number, since it uses less digits than its factorization.

916956172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20839928 (or 20839926 counting only the distinct ones).

The product of its digits is 204120, while the sum is 46.

The square root of 916956172 is about 30281.2841867712. The cubic root of 916956172 is about 971.5150349345.

It can be divided in two parts, 9169 and 56172, that added together give a triangular number (65341 = T₃₆₁).

The spelling of 916956172 in words is "nine hundred sixteen million, nine hundred fifty-six thousand, one hundred seventy-two".