68688264 has 16 divisors (see below), whose sum is σ = 171720720. Its totient is φ = 22896080.

The previous prime is 68688259. The next prime is 68688271. The reversal of 68688264 is 46288686.

It is a happy number.

It is a super-2 number, since 2×68688264² = 9436155222667392, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 1430982 + ... + 1431029.

It is an arithmetic number, because the mean of its divisors is an integer number (10732545).

Almost surely, 2^68688264 is an apocalyptic number.

It is an amenable number.

68688264 is an abundant number, since it is smaller than the sum of its proper divisors (103032456).

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

68688264 is a wasteful number, since it uses less digits than its factorization.

68688264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862020 (or 2862016 counting only the distinct ones).

The product of its digits is 884736, while the sum is 48.

The square root of 68688264 is about 8287.8383188863. The cubic root of 68688264 is about 409.5379764739.

The spelling of 68688264 in words is "sixty-eight million, six hundred eighty-eight thousand, two hundred sixty-four".