100859868 has 36 divisors (see below), whose sum is σ = 255794448. Its totient is φ = 33508800.

The previous prime is 100859867. The next prime is 100859879. The reversal of 100859868 is 868958001.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100859867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6793 + ... + 15743.

Almost surely, 2^100859868 is an apocalyptic number.

100859868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

100859868 is an abundant number, since it is smaller than the sum of its proper divisors (154934580).

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

100859868 is a wasteful number, since it uses less digits than its factorization.

100859868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9274 (or 9269 counting only the distinct ones).

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

The square root of 100859868 is about 10042.9013736071. The cubic root of 100859868 is about 465.4854728586.

The spelling of 100859868 in words is "one hundred million, eight hundred fifty-nine thousand, eight hundred sixty-eight".