72580936 has 16 divisors (see below), whose sum is σ = 136179900. Its totient is φ = 36266304.

The previous prime is 72580933. The next prime is 72580961. The reversal of 72580936 is 63908527.

It can be written as a sum of positive squares in 2 ways, for example, as 60372900 + 12208036 = 7770^2 + 3494^2 .

It is not an unprimeable number, because it can be changed into a prime (72580933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20686 + ... + 23938.

Almost surely, 2^72580936 is an apocalyptic number.

It is an amenable number.

72580936 is a deficient number, since it is larger than the sum of its proper divisors (63598964).

72580936 is a wasteful number, since it uses less digits than its factorization.

72580936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6048 (or 6044 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 72580936 is about 8519.4445828352. Note that the first 3 decimals coincide. The cubic root of 72580936 is about 417.1326535584.

The spelling of 72580936 in words is "seventy-two million, five hundred eighty thousand, nine hundred thirty-six".