72785075 has 24 divisors (see below), whose sum is σ = 104256720. Its totient is φ = 49817600.

The previous prime is 72785051. The next prime is 72785101. The reversal of 72785075 is 57058727.

It is not a de Polignac number, because 72785075 - 2²⁰ = 71736499 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3110 + ... + 12459.

It is an arithmetic number, because the mean of its divisors is an integer number (4344030).

Almost surely, 2^72785075 is an apocalyptic number.

72785075 is a deficient number, since it is larger than the sum of its proper divisors (31471645).

72785075 is a wasteful number, since it uses less digits than its factorization.

72785075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15607 (or 15602 counting only the distinct ones).

The product of its (nonzero) digits is 137200, while the sum is 41.

The square root of 72785075 is about 8531.4169397586. The cubic root of 72785075 is about 417.5233591577.

The spelling of 72785075 in words is "seventy-two million, seven hundred eighty-five thousand, seventy-five".