74910393 has 24 divisors (see below), whose sum is σ = 114972000. Its totient is φ = 48203568.

The previous prime is 74910377. The next prime is 74910413. The reversal of 74910393 is 39301947.

It is not a de Polignac number, because 74910393 - 2⁴ = 74910377 is a prime.

It is a super-2 number, since 2×74910393² = 11223133958828898, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74910323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21058 + ... + 24356.

It is an arithmetic number, because the mean of its divisors is an integer number (4790500).

Almost surely, 2^74910393 is an apocalyptic number.

It is an amenable number.

74910393 is a deficient number, since it is larger than the sum of its proper divisors (40061607).

74910393 is a wasteful number, since it uses less digits than its factorization.

74910393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366 (or 3331 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 74910393 is about 8655.0790291019. The cubic root of 74910393 is about 421.5483157846.

The spelling of 74910393 in words is "seventy-four million, nine hundred ten thousand, three hundred ninety-three".