968686868 has 12 divisors (see below), whose sum is σ = 1695505812. Its totient is φ = 484256640.

The previous prime is 968686847. The next prime is 968686889. The reversal of 968686868 is 868686869.

It is an interprime number because it is at equal distance from previous prime (968686847) and next prime (968686889).

It can be written as a sum of positive squares in 2 ways, for example, as 719741584 + 248945284 = 26828^2 + 15778^2 .

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, 7898 + ... + 44718.

It is an arithmetic number, because the mean of its divisors is an integer number (141292151).

Almost surely, 2^968686868 is an apocalyptic number.

It is an amenable number.

968686868 is a deficient number, since it is larger than the sum of its proper divisors (726818944).

968686868 is a wasteful number, since it uses less digits than its factorization.

968686868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43402 (or 43400 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 65.

The square root of 968686868 is about 31123.7348015947. The cubic root of 968686868 is about 989.4514077929.

Subtracting from 968686868 its reverse (868686869), we obtain a palindrome (99999999).

The spelling of 968686868 in words is "nine hundred sixty-eight million, six hundred eighty-six thousand, eight hundred sixty-eight".