74564513 has 8 divisors (see below), whose sum is σ = 76626048. Its totient is φ = 72522864.

The previous prime is 74564473. The next prime is 74564521. The reversal of 74564513 is 31546547.

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 74564513 - 2⁶ = 74564449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74564593) 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, 2795 + ... + 12527.

It is an arithmetic number, because the mean of its divisors is an integer number (9578256).

Almost surely, 2^74564513 is an apocalyptic number.

It is an amenable number.

74564513 is a deficient number, since it is larger than the sum of its proper divisors (2061535).

74564513 is a wasteful number, since it uses less digits than its factorization.

74564513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9943.

The product of its digits is 50400, while the sum is 35.

The square root of 74564513 is about 8635.0745798748. The cubic root of 74564513 is about 420.8985166968.

The spelling of 74564513 in words is "seventy-four million, five hundred sixty-four thousand, five hundred thirteen".