74084013 has 6 divisors (see below), whose sum is σ = 107010254. Its totient is φ = 49389336.

The previous prime is 74083979. The next prime is 74084033. The reversal of 74084013 is 31048047.

It can be written as a sum of positive squares in only one way, i.e., 45118089 + 28965924 = 6717^2 + 5382^2 .

It is not a de Polignac number, because 74084013 - 2⁶ = 74083949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74084033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4115770 + ... + 4115787.

Almost surely, 2^74084013 is an apocalyptic number.

It is an amenable number.

74084013 is a deficient number, since it is larger than the sum of its proper divisors (32926241).

74084013 is a wasteful number, since it uses less digits than its factorization.

74084013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8231563 (or 8231560 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 74084013 is about 8607.2070382906. The cubic root of 74084013 is about 419.9924658512.

The spelling of 74084013 in words is "seventy-four million, eighty-four thousand, thirteen".