72849725 has 12 divisors (see below), whose sum is σ = 97282836. Its totient is φ = 53796480.

The previous prime is 72849713. The next prime is 72849731. The reversal of 72849725 is 52794827.

It can be written as a sum of positive squares in 6 ways, for example, as 37636 + 72812089 = 194^2 + 8533^2 .

It is not a de Polignac number, because 72849725 - 2²⁴ = 56072509 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, 111752 + ... + 112401.

It is an arithmetic number, because the mean of its divisors is an integer number (8106903).

Almost surely, 2^72849725 is an apocalyptic number.

It is an amenable number.

72849725 is a deficient number, since it is larger than the sum of its proper divisors (24433111).

72849725 is a wasteful number, since it uses less digits than its factorization.

72849725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224176 (or 224171 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The square root of 72849725 is about 8535.2050356157. The cubic root of 72849725 is about 417.6469417152.

The spelling of 72849725 in words is "seventy-two million, eight hundred forty-nine thousand, seven hundred twenty-five".