68487992 has 32 divisors (see below), whose sum is σ = 132937200. Its totient is φ = 33057024.

The previous prime is 68487961. The next prime is 68488051. The reversal of 68487992 is 29978486.

It is a congruent number.

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, 29498 + ... + 31734.

Almost surely, 2^68487992 is an apocalyptic number.

It is an amenable number.

68487992 is a deficient number, since it is larger than the sum of its proper divisors (64449208).

68487992 is a wasteful number, since it uses less digits than its factorization.

68487992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375 (or 2371 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 53.

The square root of 68487992 is about 8275.7472170191. The cubic root of 68487992 is about 409.1395637634.

The spelling of 68487992 in words is "sixty-eight million, four hundred eighty-seven thousand, nine hundred ninety-two".