64888868 has 24 divisors (see below), whose sum is σ = 124195680. Its totient is φ = 29419520.

The previous prime is 64888853. The next prime is 64888871. The reversal of 64888868 is 86888846.

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 in 7 ways as a sum of consecutive naturals, for example, 17828 + ... + 21156.

It is an arithmetic number, because the mean of its divisors is an integer number (5174820).

Almost surely, 2^64888868 is an apocalyptic number.

It is an amenable number.

64888868 is a deficient number, since it is larger than the sum of its proper divisors (59306812).

64888868 is a wasteful number, since it uses less digits than its factorization.

64888868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3787 (or 3785 counting only the distinct ones).

The product of its digits is 4718592, while the sum is 56.

The square root of 64888868 is about 8055.3626858137. The cubic root of 64888868 is about 401.8433008898.

It can be divided in two parts, 64888 and 868, that added together give a palindrome (65756).

The spelling of 64888868 in words is "sixty-four million, eight hundred eighty-eight thousand, eight hundred sixty-eight".