74338979 has 16 divisors (see below), whose sum is σ = 88650240. Its totient is φ = 61443360.

The previous prime is 74338973. The next prime is 74338987. The reversal of 74338979 is 97983347.

It is not a de Polignac number, because 74338979 - 2²⁰ = 73290403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74338973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5702 + ... + 13460.

It is an arithmetic number, because the mean of its divisors is an integer number (5540640).

Almost surely, 2^74338979 is an apocalyptic number.

74338979 is a deficient number, since it is larger than the sum of its proper divisors (14311261).

74338979 is a wasteful number, since it uses less digits than its factorization.

74338979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7850.

The product of its digits is 1143072, while the sum is 50.

The square root of 74338979 is about 8622.0055091608. The cubic root of 74338979 is about 420.4737266220.

The spelling of 74338979 in words is "seventy-four million, three hundred thirty-eight thousand, nine hundred seventy-nine".