64775888 has 20 divisors (see below), whose sum is σ = 128423328. Its totient is φ = 31634400.

The previous prime is 64775869. The next prime is 64775897. The reversal of 64775888 is 88857746.

It is a happy number.

It is a congruent number.

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, 46388 + ... + 47763.

Almost surely, 2^64775888 is an apocalyptic number.

It is an amenable number.

64775888 is a deficient number, since it is larger than the sum of its proper divisors (63647440).

64775888 is a wasteful number, since it uses less digits than its factorization.

64775888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94202 (or 94196 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 53.

The square root of 64775888 is about 8048.3469110122. The cubic root of 64775888 is about 401.6099448340.

The spelling of 64775888 in words is "sixty-four million, seven hundred seventy-five thousand, eight hundred eighty-eight".