74922239 has 4 divisors (see below), whose sum is σ = 85625424. Its totient is φ = 64219056.

The previous prime is 74922227. The next prime is 74922241. The reversal of 74922239 is 93222947.

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 74922239 - 2¹² = 74918143 is a prime.

It is a super-2 number, since 2×74922239² = 11226683793546242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74922259) 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, 5351582 + ... + 5351595.

It is an arithmetic number, because the mean of its divisors is an integer number (21406356).

Almost surely, 2^74922239 is an apocalyptic number.

74922239 is a deficient number, since it is larger than the sum of its proper divisors (10703185).

74922239 is a wasteful number, since it uses less digits than its factorization.

74922239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10703184.

The product of its digits is 54432, while the sum is 38.

The square root of 74922239 is about 8655.7633401104. The cubic root of 74922239 is about 421.5705352122.

The spelling of 74922239 in words is "seventy-four million, nine hundred twenty-two thousand, two hundred thirty-nine".