74656613 has 8 divisors (see below), whose sum is σ = 76655040. Its totient is φ = 72666720.

The previous prime is 74656601. The next prime is 74656627. The reversal of 74656613 is 31665647.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74656613 - 2¹² = 74652517 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 (74656013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18098 + ... + 21836.

It is an arithmetic number, because the mean of its divisors is an integer number (9581880).

Almost surely, 2^74656613 is an apocalyptic number.

It is an amenable number.

74656613 is a deficient number, since it is larger than the sum of its proper divisors (1998427).

74656613 is a wasteful number, since it uses less digits than its factorization.

74656613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4267.

The product of its digits is 90720, while the sum is 38.

The square root of 74656613 is about 8640.4058353760. The cubic root of 74656613 is about 421.0717394199.

The spelling of 74656613 in words is "seventy-four million, six hundred fifty-six thousand, six hundred thirteen".