74572163 has 4 divisors (see below), whose sum is σ = 74647080. Its totient is φ = 74497248.

The previous prime is 74572159. The next prime is 74572189. The reversal of 74572163 is 36127547.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74572163 - 2² = 74572159 is a prime.

It is a super-2 number, since 2×74572163² = 11122014988997138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74572133) 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, 35945 + ... + 37962.

It is an arithmetic number, because the mean of its divisors is an integer number (18661770).

Almost surely, 2^74572163 is an apocalyptic number.

74572163 is a deficient number, since it is larger than the sum of its proper divisors (74917).

74572163 is a wasteful number, since it uses less digits than its factorization.

74572163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74916.

The product of its digits is 35280, while the sum is 35.

The square root of 74572163 is about 8635.5175293667. The cubic root of 74572163 is about 420.9129103336.

The spelling of 74572163 in words is "seventy-four million, five hundred seventy-two thousand, one hundred sixty-three".