72827725 has 12 divisors (see below), whose sum is σ = 90707860. Its totient is φ = 58003200.

The previous prime is 72827719. The next prime is 72827749. The reversal of 72827725 is 52772827.

It can be written as a sum of positive squares in 6 ways, for example, as 7767369 + 65060356 = 2787^2 + 8066^2 .

It is not a de Polignac number, because 72827725 - 2⁷ = 72827597 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 636 + ... + 12085.

Almost surely, 2^72827725 is an apocalyptic number.

It is an amenable number.

72827725 is a deficient number, since it is larger than the sum of its proper divisors (17880135).

72827725 is a wasteful number, since it uses less digits than its factorization.

72827725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12960 (or 12955 counting only the distinct ones).

The product of its digits is 109760, while the sum is 40.

The square root of 72827725 is about 8533.9161584820. The cubic root of 72827725 is about 417.6048955359.

The spelling of 72827725 in words is "seventy-two million, eight hundred twenty-seven thousand, seven hundred twenty-five".