74808931 has 4 divisors (see below), whose sum is σ = 76830832. Its totient is φ = 72787032.

The previous prime is 74808919. The next prime is 74808941. The reversal of 74808931 is 13980847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13980847 = 409 ⋅34183.

It is a cyclic number.

It is not a de Polignac number, because 74808931 - 2⁷ = 74808803 is a prime.

It is a super-2 number, since 2×74808931² = 11192752314725522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74808901) 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, 1010895 + ... + 1010968.

It is an arithmetic number, because the mean of its divisors is an integer number (19207708).

Almost surely, 2^74808931 is an apocalyptic number.

74808931 is a deficient number, since it is larger than the sum of its proper divisors (2021901).

74808931 is a wasteful number, since it uses less digits than its factorization.

74808931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021900.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 74808931 is about 8649.2156291770. The cubic root of 74808931 is about 421.3579084707.

The spelling of 74808931 in words is "seventy-four million, eight hundred eight thousand, nine hundred thirty-one".