64937808 has 160 divisors (see below), whose sum is σ = 207764480. Its totient is φ = 19284480.

The previous prime is 64937791. The next prime is 64937827. The reversal of 64937808 is 80873946.

It is a happy number.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 173910 + ... + 174282.

It is an arithmetic number, because the mean of its divisors is an integer number (1298528).

Almost surely, 2^64937808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64937808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103882240).

64937808 is an abundant number, since it is smaller than the sum of its proper divisors (142826672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64937808 is a wasteful number, since it uses less digits than its factorization.

64937808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 64937808 is about 8058.3998411595. The cubic root of 64937808 is about 401.9443005921.

The spelling of 64937808 in words is "sixty-four million, nine hundred thirty-seven thousand, eight hundred eight".