68769684 has 18 divisors (see below), whose sum is σ = 173834570. Its totient is φ = 22923216.

The previous prime is 68769667. The next prime is 68769691. The reversal of 68769684 is 48696786.

It can be written as a sum of positive squares in only one way, i.e., 66781584 + 1988100 = 8172^2 + 1410^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 68769684.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 955099 + ... + 955170.

Almost surely, 2^68769684 is an apocalyptic number.

It is an amenable number.

68769684 is an abundant number, since it is smaller than the sum of its proper divisors (105064886).

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

68769684 is a wasteful number, since it uses less digits than its factorization.

68769684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910279 (or 1910274 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 68769684 is about 8292.7488807994. The cubic root of 68769684 is about 409.6997285875.

The spelling of 68769684 in words is "sixty-eight million, seven hundred sixty-nine thousand, six hundred eighty-four".