64216808 has 16 divisors (see below), whose sum is σ = 126744000. Its totient is φ = 30418416.

The previous prime is 64216781. The next prime is 64216819. The reversal of 64216808 is 80861246.

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 3 ways as a sum of consecutive naturals, for example, 211088 + ... + 211391.

It is an arithmetic number, because the mean of its divisors is an integer number (7921500).

Almost surely, 2^64216808 is an apocalyptic number.

It is an amenable number.

64216808 is a deficient number, since it is larger than the sum of its proper divisors (62527192).

64216808 is a wasteful number, since it uses less digits than its factorization.

64216808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422504 (or 422500 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 64216808 is about 8013.5390433940. The cubic root of 64216808 is about 400.4511742465.

The spelling of 64216808 in words is "sixty-four million, two hundred sixteen thousand, eight hundred eight".