64988068 has 12 divisors (see below), whose sum is σ = 113833692. Its totient is φ = 32464160.

The previous prime is 64988051. The next prime is 64988083. The reversal of 64988068 is 86088946.

It can be written as a sum of positive squares in 2 ways, for example, as 29680704 + 35307364 = 5448^2 + 5942^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2155 + ... + 11602.

It is an arithmetic number, because the mean of its divisors is an integer number (9486141).

Almost surely, 2^64988068 is an apocalyptic number.

It is an amenable number.

64988068 is a deficient number, since it is larger than the sum of its proper divisors (48845624).

64988068 is a wasteful number, since it uses less digits than its factorization.

64988068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14942 (or 14940 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 64988068 is about 8061.5177231090. The cubic root of 64988068 is about 402.0479716355.

The spelling of 64988068 in words is "sixty-four million, nine hundred eighty-eight thousand, sixty-eight".