64978088 has 32 divisors (see below), whose sum is σ = 139598400. Its totient is φ = 27775872.

The previous prime is 64978079. The next prime is 64978129. The reversal of 64978088 is 88087946.

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, 24323 + ... + 26861.

It is an arithmetic number, because the mean of its divisors is an integer number (4362450).

Almost surely, 2^64978088 is an apocalyptic number.

It is an amenable number.

64978088 is an abundant number, since it is smaller than the sum of its proper divisors (74620312).

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

64978088 is a wasteful number, since it uses less digits than its factorization.

64978088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3009 (or 3005 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 64978088 is about 8060.8987092011. The cubic root of 64978088 is about 402.0273901950.

The spelling of 64978088 in words is "sixty-four million, nine hundred seventy-eight thousand, eighty-eight".