74289379 has 4 divisors (see below), whose sum is σ = 77519376. Its totient is φ = 71059384.

The previous prime is 74289311. The next prime is 74289389. The reversal of 74289379 is 97398247.

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 74289379 - 2¹³ = 74281187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74289389) 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 3 ways as a sum of consecutive naturals, for example, 1614964 + ... + 1615009.

It is an arithmetic number, because the mean of its divisors is an integer number (19379844).

Almost surely, 2^74289379 is an apocalyptic number.

74289379 is a deficient number, since it is larger than the sum of its proper divisors (3229997).

74289379 is a wasteful number, since it uses less digits than its factorization.

74289379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229996.

The product of its digits is 762048, while the sum is 49.

The square root of 74289379 is about 8619.1286682588. The cubic root of 74289379 is about 420.3801905113.

It can be divided in two parts, 7428 and 9379, that added together give a 5-th power (16807 = 7⁵).

The spelling of 74289379 in words is "seventy-four million, two hundred eighty-nine thousand, three hundred seventy-nine".