64700488 has 8 divisors (see below), whose sum is σ = 121313430. Its totient is φ = 32350240.

The previous prime is 64700477. The next prime is 64700497. The reversal of 64700488 is 88400746.

It can be written as a sum of positive squares in only one way, i.e., 64288324 + 412164 = 8018^2 + 642^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4043773 + ... + 4043788.

Almost surely, 2^64700488 is an apocalyptic number.

It is an amenable number.

64700488 is a deficient number, since it is larger than the sum of its proper divisors (56612942).

64700488 is a wasteful number, since it uses less digits than its factorization.

64700488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8087567 (or 8087563 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 64700488 is about 8043.6613553779. The cubic root of 64700488 is about 401.4540578844.

The spelling of 64700488 in words is "sixty-four million, seven hundred thousand, four hundred eighty-eight".