74545564 has 6 divisors (see below), whose sum is σ = 130454744. Its totient is φ = 37272780.

The previous prime is 74545517. The next prime is 74545579. The reversal of 74545564 is 46554547.

It is a happy number.

It is a super-2 number, since 2×74545564² = 11114082224156192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9318192 + ... + 9318199.

Almost surely, 2^74545564 is an apocalyptic number.

It is an amenable number.

74545564 is a deficient number, since it is larger than the sum of its proper divisors (55909180).

74545564 is a wasteful number, since it uses less digits than its factorization.

74545564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18636395 (or 18636393 counting only the distinct ones).

The product of its digits is 336000, while the sum is 40.

The square root of 74545564 is about 8633.9772990204. The cubic root of 74545564 is about 420.8628595127.

The spelling of 74545564 in words is "seventy-four million, five hundred forty-five thousand, five hundred sixty-four".