68831912 has 32 divisors (see below), whose sum is σ = 138908520. Its totient is φ = 31856640.

The previous prime is 68831909. The next prime is 68831921. The reversal of 68831912 is 21913886.

It can be written as a sum of positive squares in 4 ways, for example, as 66161956 + 2669956 = 8134^2 + 1634^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4148 + ... + 12444.

Almost surely, 2^68831912 is an apocalyptic number.

It is a pronic number, being equal to 8296×8297.

It is an amenable number.

68831912 is an abundant number, since it is smaller than the sum of its proper divisors (70076608).

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

68831912 is a wasteful number, since it uses less digits than its factorization.

68831912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8381 (or 8377 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 68831912 is about 8296.4999849334. The cubic root of 68831912 is about 409.8232670772.

The spelling of 68831912 in words is "sixty-eight million, eight hundred thirty-one thousand, nine hundred twelve".