72715315 has 8 divisors (see below), whose sum is σ = 87325920. Its totient is φ = 58127232.

The previous prime is 72715309. The next prime is 72715327. The reversal of 72715315 is 51351727.

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

It is a cyclic number.

It is not a de Polignac number, because 72715315 - 2⁵ = 72715283 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2562 + ... + 12328.

It is an arithmetic number, because the mean of its divisors is an integer number (10915740).

Almost surely, 2^72715315 is an apocalyptic number.

72715315 is a deficient number, since it is larger than the sum of its proper divisors (14610605).

72715315 is a wasteful number, since it uses less digits than its factorization.

72715315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11261.

The product of its digits is 7350, while the sum is 31.

The square root of 72715315 is about 8527.3275414986. The cubic root of 72715315 is about 417.3899264002.

The spelling of 72715315 in words is "seventy-two million, seven hundred fifteen thousand, three hundred fifteen".