72572617 has 8 divisors (see below), whose sum is σ = 78223040. Its totient is φ = 66931920.

The previous prime is 72572611. The next prime is 72572623. The reversal of 72572617 is 71627527.

It is an interprime number because it is at equal distance from previous prime (72572611) and next prime (72572623).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72572617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72572611) 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, 22942 + ... + 25912.

It is an arithmetic number, because the mean of its divisors is an integer number (9777880).

Almost surely, 2^72572617 is an apocalyptic number.

It is an amenable number.

72572617 is a deficient number, since it is larger than the sum of its proper divisors (5650423).

72572617 is a wasteful number, since it uses less digits than its factorization.

72572617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4863.

The product of its digits is 41160, while the sum is 37.

The square root of 72572617 is about 8518.9563327910. The cubic root of 72572617 is about 417.1167161359.

The spelling of 72572617 in words is "seventy-two million, five hundred seventy-two thousand, six hundred seventeen".