817930912 has 24 divisors (see below), whose sum is σ = 1618657236. Its totient is φ = 406843392.

The previous prime is 817930901. The next prime is 817930921. The reversal of 817930912 is 219039718.

It can be written as a sum of positive squares in 2 ways, for example, as 804062736 + 13868176 = 28356^2 + 3724^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60043 + ... + 72394.

Almost surely, 2^817930912 is an apocalyptic number.

It is an amenable number.

817930912 is a deficient number, since it is larger than the sum of its proper divisors (800726324).

817930912 is a wasteful number, since it uses less digits than its factorization.

817930912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132640 (or 132632 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 817930912 is about 28599.4914640103. The cubic root of 817930912 is about 935.2022447535.

The spelling of 817930912 in words is "eight hundred seventeen million, nine hundred thirty thousand, nine hundred twelve".