74715431 has 12 divisors (see below), whose sum is σ = 89267472. Its totient is φ = 61254336.

The previous prime is 74715409. The next prime is 74715491. The reversal of 74715431 is 13451747.

It is not a de Polignac number, because 74715431 - 2⁶ = 74715367 is a prime.

It is a super-2 number, since 2×74715431² = 11164791259031522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74715491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6386 + ... + 13791.

It is an arithmetic number, because the mean of its divisors is an integer number (7438956).

Almost surely, 2^74715431 is an apocalyptic number.

74715431 is a deficient number, since it is larger than the sum of its proper divisors (14552041).

74715431 is a wasteful number, since it uses less digits than its factorization.

74715431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20230 (or 20207 counting only the distinct ones).

The product of its digits is 11760, while the sum is 32.

The square root of 74715431 is about 8643.8088248179. The cubic root of 74715431 is about 421.1822904495.

The spelling of 74715431 in words is "seventy-four million, seven hundred fifteen thousand, four hundred thirty-one".