74856513 has 32 divisors (see below), whose sum is σ = 108345600. Its totient is φ = 45847296.

The previous prime is 74856499. The next prime is 74856517. The reversal of 74856513 is 31565847.

It is not a de Polignac number, because 74856513 - 2⁶ = 74856449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74856517) 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 31 ways as a sum of consecutive naturals, for example, 278143 + ... + 278411.

It is an arithmetic number, because the mean of its divisors is an integer number (3385800).

Almost surely, 2^74856513 is an apocalyptic number.

It is an amenable number.

74856513 is a deficient number, since it is larger than the sum of its proper divisors (33489087).

74856513 is a wasteful number, since it uses less digits than its factorization.

74856513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441.

The product of its digits is 100800, while the sum is 39.

The square root of 74856513 is about 8651.9658459797. The cubic root of 74856513 is about 421.4472240222.

The spelling of 74856513 in words is "seventy-four million, eight hundred fifty-six thousand, five hundred thirteen".