72836725 has 12 divisors (see below), whose sum is σ = 97265476. Its totient is φ = 53786880.

The previous prime is 72836723. The next prime is 72836737. The reversal of 72836725 is 52763827.

It can be written as a sum of positive squares in 6 ways, for example, as 5317636 + 67519089 = 2306^2 + 8217^2 .

It is not a de Polignac number, because 72836725 - 2¹ = 72836723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72836723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111732 + ... + 112381.

Almost surely, 2^72836725 is an apocalyptic number.

It is an amenable number.

72836725 is a deficient number, since it is larger than the sum of its proper divisors (24428751).

72836725 is a wasteful number, since it uses less digits than its factorization.

72836725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224136 (or 224131 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 72836725 is about 8534.4434499269. The cubic root of 72836725 is about 417.6220972689.

The spelling of 72836725 in words is "seventy-two million, eight hundred thirty-six thousand, seven hundred twenty-five".