72529868 has 6 divisors (see below), whose sum is σ = 126927276. Its totient is φ = 36264932.

The previous prime is 72529867. The next prime is 72529889. The reversal of 72529868 is 86892527.

It is not an unprimeable number, because it can be changed into a prime (72529867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9066230 + ... + 9066237.

It is an arithmetic number, because the mean of its divisors is an integer number (21154546).

Almost surely, 2^72529868 is an apocalyptic number.

It is an amenable number.

72529868 is a deficient number, since it is larger than the sum of its proper divisors (54397408).

72529868 is a wasteful number, since it uses less digits than its factorization.

72529868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18132471 (or 18132469 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 72529868 is about 8516.4469117115. The cubic root of 72529868 is about 417.0347989906.

The spelling of 72529868 in words is "seventy-two million, five hundred twenty-nine thousand, eight hundred sixty-eight".