72576227 has 4 divisors (see below), whose sum is σ = 73130376. Its totient is φ = 72022080.

The previous prime is 72576211. The next prime is 72576253. The reversal of 72576227 is 72267527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72267527 = 17 ⋅4251031.

It is a cyclic number.

It is not a de Polignac number, because 72576227 - 2⁴ = 72576211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72576727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276878 + ... + 277139.

It is an arithmetic number, because the mean of its divisors is an integer number (18282594).

Almost surely, 2^72576227 is an apocalyptic number.

72576227 is a deficient number, since it is larger than the sum of its proper divisors (554149).

72576227 is a wasteful number, since it uses less digits than its factorization.

72576227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554148.

The product of its digits is 82320, while the sum is 38.

The square root of 72576227 is about 8519.1682105708. The cubic root of 72576227 is about 417.1236322724.

The spelling of 72576227 in words is "seventy-two million, five hundred seventy-six thousand, two hundred twenty-seven".