74639612 has 12 divisors (see below), whose sum is σ = 130695936. Its totient is φ = 37297920.

The previous prime is 74639611. The next prime is 74639627. The reversal of 74639612 is 21693647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74639611) 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, 4037 + ... + 12867.

It is an arithmetic number, because the mean of its divisors is an integer number (10891328).

Almost surely, 2^74639612 is an apocalyptic number.

It is an amenable number.

74639612 is a deficient number, since it is larger than the sum of its proper divisors (56056324).

74639612 is a wasteful number, since it uses less digits than its factorization.

74639612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10948 (or 10946 counting only the distinct ones).

The product of its digits is 54432, while the sum is 38.

The square root of 74639612 is about 8639.4219714053. The cubic root of 74639612 is about 421.0397744725.

The spelling of 74639612 in words is "seventy-four million, six hundred thirty-nine thousand, six hundred twelve".