74612564 has 12 divisors (see below), whose sum is σ = 140616084. Its totient is φ = 34436544.

The previous prime is 74612561. The next prime is 74612569. The reversal of 74612564 is 46521647.

It can be written as a sum of positive squares in 2 ways, for example, as 17156164 + 57456400 = 4142^2 + 7580^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74612561) 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, 717377 + ... + 717480.

It is an arithmetic number, because the mean of its divisors is an integer number (11718007).

Almost surely, 2^74612564 is an apocalyptic number.

It is an amenable number.

74612564 is a deficient number, since it is larger than the sum of its proper divisors (66003520).

74612564 is a wasteful number, since it uses less digits than its factorization.

74612564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434874 (or 1434872 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 74612564 is about 8637.8564470591. The cubic root of 74612564 is about 420.9889093469.

The spelling of 74612564 in words is "seventy-four million, six hundred twelve thousand, five hundred sixty-four".