74705379 has 16 divisors (see below), whose sum is σ = 114500352. Its totient is φ = 42439968.

The previous prime is 74705377. The next prime is 74705417. The reversal of 74705379 is 97350747.

It is not a de Polignac number, because 74705379 - 2¹ = 74705377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74705379.

It is not an unprimeable number, because it can be changed into a prime (74705377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6649 + ... + 13914.

It is an arithmetic number, because the mean of its divisors is an integer number (7156272).

Almost surely, 2^74705379 is an apocalyptic number.

74705379 is a deficient number, since it is larger than the sum of its proper divisors (39794973).

74705379 is a wasteful number, since it uses less digits than its factorization.

74705379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20746.

The product of its (nonzero) digits is 185220, while the sum is 42.

The square root of 74705379 is about 8643.2273486239. The cubic root of 74705379 is about 421.1634013829.

It can be divided in two parts, 7470 and 5379, that multiplied together give a triangular number (40181130 = T₈₉₆₄).

The spelling of 74705379 in words is "seventy-four million, seven hundred five thousand, three hundred seventy-nine".