64884730 has 16 divisors (see below), whose sum is σ = 117241344. Its totient is φ = 25854160.

The previous prime is 64884727. The next prime is 64884731. The reversal of 64884730 is 3748846.

It is not an unprimeable number, because it can be changed into a prime (64884731) 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, 9706 + ... + 14965.

It is an arithmetic number, because the mean of its divisors is an integer number (7327584).

Almost surely, 2^64884730 is an apocalyptic number.

64884730 is a deficient number, since it is larger than the sum of its proper divisors (52356614).

64884730 is a wasteful number, since it uses less digits than its factorization.

64884730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24941.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 64884730 is about 8055.1058341899. The cubic root of 64884730 is about 401.8347587830.

The spelling of 64884730 in words is "sixty-four million, eight hundred eighty-four thousand, seven hundred thirty".