68713992 has 48 divisors (see below), whose sum is σ = 192523500. Its totient is φ = 22114176.

The previous prime is 68713979. The next prime is 68713993. The reversal of 68713992 is 29931786.

It can be written as a sum of positive squares in 2 ways, for example, as 65707236 + 3006756 = 8106^2 + 1734^2 .

It is a super-2 number, since 2×68713992² = 9443225393152128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68713993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14367 + ... + 18542.

Almost surely, 2^68713992 is an apocalyptic number.

It is an amenable number.

68713992 is an abundant number, since it is smaller than the sum of its proper divisors (123809508).

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

68713992 is a wasteful number, since it uses less digits than its factorization.

68713992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32950 (or 32943 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 68713992 is about 8289.3903274004. The cubic root of 68713992 is about 409.5891025187.

The spelling of 68713992 in words is "sixty-eight million, seven hundred thirteen thousand, nine hundred ninety-two".