74922321 has 16 divisors (see below), whose sum is σ = 101059200. Its totient is φ = 49370880.

The previous prime is 74922317. The next prime is 74922329. The reversal of 74922321 is 12322947.

It is not a de Polignac number, because 74922321 - 2² = 74922317 is a prime.

It is a super-2 number, since 2×74922321² = 11226708368054082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74922329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124780 + ... + 125378.

It is an arithmetic number, because the mean of its divisors is an integer number (6316200).

Almost surely, 2^74922321 is an apocalyptic number.

It is an amenable number.

74922321 is a deficient number, since it is larger than the sum of its proper divisors (26136879).

74922321 is a wasteful number, since it uses less digits than its factorization.

74922321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016.

The product of its digits is 6048, while the sum is 30.

The square root of 74922321 is about 8655.7680768375. The cubic root of 74922321 is about 421.5706890106.

The spelling of 74922321 in words is "seventy-four million, nine hundred twenty-two thousand, three hundred twenty-one".