100866988 has 12 divisors (see below), whose sum is σ = 182604240. Its totient is φ = 48694352.

The previous prime is 100866923. The next prime is 100866989. The reversal of 100866988 is 889668001.

It is not an unprimeable number, because it can be changed into a prime (100866989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434656 + ... + 434887.

It is an arithmetic number, because the mean of its divisors is an integer number (15217020).

Almost surely, 2^100866988 is an apocalyptic number.

It is an amenable number.

100866988 is a deficient number, since it is larger than the sum of its proper divisors (81737252).

100866988 is a wasteful number, since it uses less digits than its factorization.

100866988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869576 (or 869574 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 100866988 is about 10043.2558465868. The cubic root of 100866988 is about 465.4964259385.

The spelling of 100866988 in words is "one hundred million, eight hundred sixty-six thousand, nine hundred eighty-eight".