74244979 has 4 divisors (see below), whose sum is σ = 74273584. Its totient is φ = 74216376.

The previous prime is 74244971. The next prime is 74244983. The reversal of 74244979 is 97944247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97944247 = 4339 ⋅22573.

It is a cyclic number.

It is not a de Polignac number, because 74244979 - 2³ = 74244971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74244971) 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, 9972 + ... + 15745.

It is an arithmetic number, because the mean of its divisors is an integer number (18568396).

Almost surely, 2^74244979 is an apocalyptic number.

74244979 is a deficient number, since it is larger than the sum of its proper divisors (28605).

74244979 is a wasteful number, since it uses less digits than its factorization.

74244979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28604.

The product of its digits is 508032, while the sum is 46.

The square root of 74244979 is about 8616.5526169112. The cubic root of 74244979 is about 420.2964252841.

It can be divided in two parts, 7424 and 4979, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 74244979 in words is "seventy-four million, two hundred forty-four thousand, nine hundred seventy-nine".