72736015 has 16 divisors (see below), whose sum is σ = 95800320. Its totient is φ = 52575520.

The previous prime is 72735997. The next prime is 72736039. The reversal of 72736015 is 51063727.

It is not a de Polignac number, because 72736015 - 2¹⁵ = 72703247 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5226 + ... + 13144.

It is an arithmetic number, because the mean of its divisors is an integer number (5987520).

Almost surely, 2^72736015 is an apocalyptic number.

72736015 is a deficient number, since it is larger than the sum of its proper divisors (23064305).

72736015 is a wasteful number, since it uses less digits than its factorization.

72736015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8102.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 72736015 is about 8528.5411999943. The cubic root of 72736015 is about 417.4295290238.

The spelling of 72736015 in words is "seventy-two million, seven hundred thirty-six thousand, fifteen".