72725871 has 8 divisors (see below), whose sum is σ = 97015600. Its totient is φ = 48460032.

The previous prime is 72725843. The next prime is 72725909. The reversal of 72725871 is 17852727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72725871 - 2⁷ = 72725743 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 (72725801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3105 + ... + 12453.

It is an arithmetic number, because the mean of its divisors is an integer number (12126950).

Almost surely, 2^72725871 is an apocalyptic number.

72725871 is a deficient number, since it is larger than the sum of its proper divisors (24289729).

72725871 is a wasteful number, since it uses less digits than its factorization.

72725871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11945.

The product of its digits is 54880, while the sum is 39.

The square root of 72725871 is about 8527.9464702823. The cubic root of 72725871 is about 417.4101227641.

The spelling of 72725871 in words is "seventy-two million, seven hundred twenty-five thousand, eight hundred seventy-one".