68307172 has 12 divisors (see below), whose sum is σ = 119759920. Its totient is φ = 34090056.

The previous prime is 68307137. The next prime is 68307181. The reversal of 68307172 is 27170386.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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, 13422 + ... + 17797.

Almost surely, 2^68307172 is an apocalyptic number.

It is an amenable number.

68307172 is a deficient number, since it is larger than the sum of its proper divisors (51452748).

68307172 is a wasteful number, since it uses less digits than its factorization.

68307172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31770 (or 31768 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 68307172 is about 8264.8153034415. The cubic root of 68307172 is about 408.7791803026.

The spelling of 68307172 in words is "sixty-eight million, three hundred seven thousand, one hundred seventy-two".