100868958 has 12 divisors (see below), whose sum is σ = 218549448. Its totient is φ = 33622980.

The previous prime is 100868917. The next prime is 100868981. The reversal of 100868958 is 859868001.

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, 2801898 + ... + 2801933.

It is an arithmetic number, because the mean of its divisors is an integer number (18212454).

Almost surely, 2^100868958 is an apocalyptic number.

100868958 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

100868958 is an abundant number, since it is smaller than the sum of its proper divisors (117680490).

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

100868958 is a wasteful number, since it uses less digits than its factorization.

100868958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5603839 (or 5603836 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 100868958 is about 10043.3539218729. The cubic root of 100868958 is about 465.4994564047.

It can be divided in two parts, 10086 and 8958, that added together give a square (19044 = 138²).

The spelling of 100868958 in words is "one hundred million, eight hundred sixty-eight thousand, nine hundred fifty-eight".