74779716 has 48 divisors (see below), whose sum is σ = 198632448. Its totient is φ = 21674400.

The previous prime is 74779711. The next prime is 74779811. The reversal of 74779716 is 61797747.

It is not an unprimeable number, because it can be changed into a prime (74779711) 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, 9280 + ... + 15351.

It is an arithmetic number, because the mean of its divisors is an integer number (4138176).

Almost surely, 2^74779716 is an apocalyptic number.

It is an amenable number.

74779716 is an abundant number, since it is smaller than the sum of its proper divisors (123852732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74779716 is a wasteful number, since it uses less digits than its factorization.

74779716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24672 (or 24670 counting only the distinct ones).

The product of its digits is 518616, while the sum is 48.

The square root of 74779716 is about 8647.5265827865. The cubic root of 74779716 is about 421.3030506084.

The spelling of 74779716 in words is "seventy-four million, seven hundred seventy-nine thousand, seven hundred sixteen".