72915269 has 8 divisors (see below), whose sum is σ = 83658048. Its totient is φ = 62254080.

The previous prime is 72915259. The next prime is 72915277. The reversal of 72915269 is 96251927.

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

It is not a de Polignac number, because 72915269 - 2⁸ = 72915013 is a prime.

It is a super-2 number, since 2×72915269² = 10633272906684722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72915239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18467 + ... + 22064.

It is an arithmetic number, because the mean of its divisors is an integer number (10457256).

Almost surely, 2^72915269 is an apocalyptic number.

It is an amenable number.

72915269 is a deficient number, since it is larger than the sum of its proper divisors (10742779).

72915269 is a wasteful number, since it uses less digits than its factorization.

72915269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40795.

The product of its digits is 68040, while the sum is 41.

The square root of 72915269 is about 8539.0437989274. The cubic root of 72915269 is about 417.7721585940.

The spelling of 72915269 in words is "seventy-two million, nine hundred fifteen thousand, two hundred sixty-nine".