72919788 has 12 divisors (see below), whose sum is σ = 170146200. Its totient is φ = 24306592.

The previous prime is 72919741. The next prime is 72919793. The reversal of 72919788 is 88791927.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 72919788.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3038313 + ... + 3038336.

It is an arithmetic number, because the mean of its divisors is an integer number (14178850).

Almost surely, 2^72919788 is an apocalyptic number.

It is an amenable number.

72919788 is an abundant number, since it is smaller than the sum of its proper divisors (97226412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72919788 is a wasteful number, since it uses less digits than its factorization.

72919788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6076656 (or 6076654 counting only the distinct ones).

The product of its digits is 508032, while the sum is 51.

The square root of 72919788 is about 8539.3084029095. The cubic root of 72919788 is about 417.7807890378.

The spelling of 72919788 in words is "seventy-two million, nine hundred nineteen thousand, seven hundred eighty-eight".