74664386 has 32 divisors (see below), whose sum is σ = 119672640. Its totient is φ = 34879936.

The previous prime is 74664361. The next prime is 74664389. The reversal of 74664386 is 68346647.

It is a happy number.

It is a super-3 number, since 3×74664386³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (74664389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328805 + ... + 329031.

It is an arithmetic number, because the mean of its divisors is an integer number (3739770).

Almost surely, 2^74664386 is an apocalyptic number.

74664386 is a deficient number, since it is larger than the sum of its proper divisors (45008254).

74664386 is a wasteful number, since it uses less digits than its factorization.

74664386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418.

The product of its digits is 580608, while the sum is 44.

The square root of 74664386 is about 8640.8556289293. The cubic root of 74664386 is about 421.0863524457.

The spelling of 74664386 in words is "seventy-four million, six hundred sixty-four thousand, three hundred eighty-six".