72857968 has 10 divisors (see below), whose sum is σ = 141162344. Its totient is φ = 36428976.

The previous prime is 72857963. The next prime is 72857969. The reversal of 72857968 is 86975827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72857963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2276796 + ... + 2276827.

Almost surely, 2^72857968 is an apocalyptic number.

It is an amenable number.

72857968 is a deficient number, since it is larger than the sum of its proper divisors (68304376).

72857968 is a wasteful number, since it uses less digits than its factorization.

72857968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4553631 (or 4553625 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 52.

The square root of 72857968 is about 8535.6879043227. The cubic root of 72857968 is about 417.6626934740.

The spelling of 72857968 in words is "seventy-two million, eight hundred fifty-seven thousand, nine hundred sixty-eight".