64698868 has 24 divisors (see below), whose sum is σ = 122202080. Its totient is φ = 29795040.

The previous prime is 64698863. The next prime is 64698871. The reversal of 64698868 is 86889646.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64698863) by changing a digit.

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, 28603 + ... + 30781.

Almost surely, 2^64698868 is an apocalyptic number.

It is an amenable number.

64698868 is a deficient number, since it is larger than the sum of its proper divisors (57503212).

64698868 is a wasteful number, since it uses less digits than its factorization.

64698868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767 (or 2765 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 55.

The square root of 64698868 is about 8043.5606543371. The cubic root of 64698868 is about 401.4507072605.

The spelling of 64698868 in words is "sixty-four million, six hundred ninety-eight thousand, eight hundred sixty-eight".