72796591 has 8 divisors (see below), whose sum is σ = 83327264. Its totient is φ = 62298720.

The previous prime is 72796573. The next prime is 72796597. The reversal of 72796591 is 19569727.

It is a happy number.

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 72796591 - 2¹¹ = 72794543 is a prime.

It is a super-2 number, since 2×72796591² = 10598687322442562, 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 (72796597) 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, 3240 + ... + 12493.

It is an arithmetic number, because the mean of its divisors is an integer number (10415908).

Almost surely, 2^72796591 is an apocalyptic number.

72796591 is a deficient number, since it is larger than the sum of its proper divisors (10530673).

72796591 is a wasteful number, since it uses less digits than its factorization.

72796591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16401.

The product of its digits is 238140, while the sum is 46.

The square root of 72796591 is about 8532.0918302606. The cubic root of 72796591 is about 417.5453780741.

The spelling of 72796591 in words is "seventy-two million, seven hundred ninety-six thousand, five hundred ninety-one".