72884725 has 12 divisors (see below), whose sum is σ = 90599236. Its totient is φ = 58164480.

The previous prime is 72884711. The next prime is 72884737. The reversal of 72884725 is 52748827.

It can be written as a sum of positive squares in 6 ways, for example, as 4356 + 72880369 = 66^2 + 8537^2 .

It is not a de Polignac number, because 72884725 - 2⁷ = 72884597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7459 + ... + 14191.

Almost surely, 2^72884725 is an apocalyptic number.

It is an amenable number.

72884725 is a deficient number, since it is larger than the sum of its proper divisors (17714511).

72884725 is a wasteful number, since it uses less digits than its factorization.

72884725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7176 (or 7171 counting only the distinct ones).

The product of its digits is 250880, while the sum is 43.

The square root of 72884725 is about 8537.2551209390. The cubic root of 72884725 is about 417.7138159214.

The spelling of 72884725 in words is "seventy-two million, eight hundred eighty-four thousand, seven hundred twenty-five".