72799577 has 8 divisors (see below), whose sum is σ = 76355136. Its totient is φ = 69276592.

The previous prime is 72799553. The next prime is 72799589. The reversal of 72799577 is 77599727.

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 72799577 - 2¹⁸ = 72537433 is a prime.

It is a super-2 number, since 2×72799577² = 10599556822757858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72799547) 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, 3503 + ... + 12564.

It is an arithmetic number, because the mean of its divisors is an integer number (9544392).

Almost surely, 2^72799577 is an apocalyptic number.

It is an amenable number.

72799577 is a deficient number, since it is larger than the sum of its proper divisors (3555559).

72799577 is a wasteful number, since it uses less digits than its factorization.

72799577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16287.

The product of its digits is 1944810, while the sum is 53.

The square root of 72799577 is about 8532.2668148623. The cubic root of 72799577 is about 417.5510870111.

The spelling of 72799577 in words is "seventy-two million, seven hundred ninety-nine thousand, five hundred seventy-seven".