72847988 has 24 divisors (see below), whose sum is σ = 130092480. Its totient is φ = 35685440.

The previous prime is 72847937. The next prime is 72847991. The reversal of 72847988 is 88974827.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 50120 + ... + 51552.

It is an arithmetic number, because the mean of its divisors is an integer number (5420520).

Almost surely, 2^72847988 is an apocalyptic number.

It is an amenable number.

72847988 is a deficient number, since it is larger than the sum of its proper divisors (57244492).

72847988 is a wasteful number, since it uses less digits than its factorization.

72847988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687 (or 1685 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 53.

The square root of 72847988 is about 8535.1032799844. The cubic root of 72847988 is about 417.6436222860.

The spelling of 72847988 in words is "seventy-two million, eight hundred forty-seven thousand, nine hundred eighty-eight".