74566385 has 4 divisors (see below), whose sum is σ = 89479668. Its totient is φ = 59653104.

The previous prime is 74566333. The next prime is 74566417. The reversal of 74566385 is 58366547.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42406144 + 32160241 = 6512^2 + 5671^2 .

It is a cyclic number.

It is not a de Polignac number, because 74566385 - 2⁶ = 74566321 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7456634 + ... + 7456643.

It is an arithmetic number, because the mean of its divisors is an integer number (22369917).

Almost surely, 2^74566385 is an apocalyptic number.

It is an amenable number.

74566385 is a deficient number, since it is larger than the sum of its proper divisors (14913283).

74566385 is a wasteful number, since it uses less digits than its factorization.

74566385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14913282.

The product of its digits is 604800, while the sum is 44.

The square root of 74566385 is about 8635.1829743208. The cubic root of 74566385 is about 420.9020389954.

The spelling of 74566385 in words is "seventy-four million, five hundred sixty-six thousand, three hundred eighty-five".