64798884 has 18 divisors (see below), whose sum is σ = 163797270. Its totient is φ = 21599616.

The previous prime is 64798861. The next prime is 64798891. The reversal of 64798884 is 48889746.

It can be written as a sum of positive squares in only one way, i.e., 42614784 + 22184100 = 6528^2 + 4710^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 64798884.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 899949 + ... + 900020.

Almost surely, 2^64798884 is an apocalyptic number.

It is an amenable number.

64798884 is an abundant number, since it is smaller than the sum of its proper divisors (98998386).

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

64798884 is a wasteful number, since it uses less digits than its factorization.

64798884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799979 (or 1799974 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 64798884 is about 8049.7754005935. The cubic root of 64798884 is about 401.6574642115.

The spelling of 64798884 in words is "sixty-four million, seven hundred ninety-eight thousand, eight hundred eighty-four".