64338866 has 16 divisors (see below), whose sum is σ = 101240064. Its totient is φ = 30607104.

The previous prime is 64338823. The next prime is 64338877. The reversal of 64338866 is 66883346.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5255 + ... + 12501.

It is an arithmetic number, because the mean of its divisors is an integer number (6327504).

Almost surely, 2^64338866 is an apocalyptic number.

64338866 is a deficient number, since it is larger than the sum of its proper divisors (36901198).

64338866 is a wasteful number, since it uses less digits than its factorization.

64338866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7465.

The product of its digits is 497664, while the sum is 44.

The square root of 64338866 is about 8021.1511642656. The cubic root of 64338866 is about 400.7047284985.

The spelling of 64338866 in words is "sixty-four million, three hundred thirty-eight thousand, eight hundred sixty-six".