100686868 has 6 divisors (see below), whose sum is σ = 176202026. Its totient is φ = 50343432.

The previous prime is 100686841. The next prime is 100686877. The reversal of 100686868 is 868686001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 86155524 + 14531344 = 9282^2 + 3812^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12585855 + ... + 12585862.

Almost surely, 2^100686868 is an apocalyptic number.

It is an amenable number.

100686868 is a deficient number, since it is larger than the sum of its proper divisors (75515158).

100686868 is a wasteful number, since it uses less digits than its factorization.

100686868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25171721 (or 25171719 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 100686868 is about 10034.2846282134. The cubic root of 100686868 is about 465.2191790564.

The spelling of 100686868 in words is "one hundred million, six hundred eighty-six thousand, eight hundred sixty-eight".