100668687 has 24 divisors (see below), whose sum is σ = 161183232. Its totient is φ = 55666800.

The previous prime is 100668643. The next prime is 100668697. The reversal of 100668687 is 786866001.

It is not a de Polignac number, because 100668687 - 2⁸ = 100668431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100668697) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6489 + ... + 15602.

It is an arithmetic number, because the mean of its divisors is an integer number (6715968).

Almost surely, 2^100668687 is an apocalyptic number.

100668687 is a deficient number, since it is larger than the sum of its proper divisors (60514545).

100668687 is a wasteful number, since it uses less digits than its factorization.

100668687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22139 (or 22132 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 100668687 is about 10033.3786433085. The cubic root of 100668687 is about 465.1911758712.

The spelling of 100668687 in words is "one hundred million, six hundred sixty-eight thousand, six hundred eighty-seven".