72905884 has 12 divisors (see below), whose sum is σ = 131985000. Its totient is φ = 35195888.

The previous prime is 72905827. The next prime is 72905891. The reversal of 72905884 is 48850927.

It is a self number, because there is not a number n which added to its sum of digits gives 72905884.

It is a congruent number.

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, 314134 + ... + 314365.

It is an arithmetic number, because the mean of its divisors is an integer number (10998750).

Almost surely, 2^72905884 is an apocalyptic number.

It is an amenable number.

72905884 is a deficient number, since it is larger than the sum of its proper divisors (59079116).

72905884 is a wasteful number, since it uses less digits than its factorization.

72905884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628532 (or 628530 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 72905884 is about 8538.4942466456. The cubic root of 72905884 is about 417.7542338622.

The spelling of 72905884 in words is "seventy-two million, nine hundred five thousand, eight hundred eighty-four".