74395479 has 4 divisors (see below), whose sum is σ = 99193976. Its totient is φ = 49596984.

The previous prime is 74395429. The next prime is 74395481. The reversal of 74395479 is 97459347.

It is a happy number.

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

It is not a de Polignac number, because 74395479 - 2²⁴ = 57618263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74395429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12399244 + ... + 12399249.

It is an arithmetic number, because the mean of its divisors is an integer number (24798494).

Almost surely, 2^74395479 is an apocalyptic number.

74395479 is a deficient number, since it is larger than the sum of its proper divisors (24798497).

74395479 is a wasteful number, since it uses less digits than its factorization.

74395479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24798496.

The product of its digits is 952560, while the sum is 48.

The square root of 74395479 is about 8625.2813867143. The cubic root of 74395479 is about 420.5802241364.

The spelling of 74395479 in words is "seventy-four million, three hundred ninety-five thousand, four hundred seventy-nine".