72915 has 8 divisors (see below), whose sum is σ = 116688. Its totient is φ = 38880.

The previous prime is 72911. The next prime is 72923. The reversal of 72915 is 51927.

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

It is not a de Polignac number, because 72915 - 2² = 72911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72911) 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, 2416 + ... + 2445.

It is an arithmetic number, because the mean of its divisors is an integer number (14586).

2⁷²⁹¹⁵ is an apocalyptic number.

72915 is a deficient number, since it is larger than the sum of its proper divisors (43773).

72915 is a wasteful number, since it uses less digits than its factorization.

72915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4869.

The product of its digits is 630, while the sum is 24.

The square root of 72915 is about 270.0277763490. The cubic root of 72915 is about 41.7771644843. Note that the first 3 decimals are identical.

The spelling of 72915 in words is "seventy-two thousand, nine hundred fifteen".