99859968 has 120 divisors (see below), whose sum is σ = 310558248. Its totient is φ = 30707712.

The previous prime is 99859961. The next prime is 99859979. The reversal of 99859968 is 86995899.

It is a super-2 number, since 2×99859968² = 19944026417922048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99859961) 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, 59071 + ... + 60737.

Almost surely, 2^99859968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99859968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155279124).

99859968 is an abundant number, since it is smaller than the sum of its proper divisors (210698280).

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

99859968 is a wasteful number, since it uses less digits than its factorization.

99859968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704 (or 1685 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 63.

The square root of 99859968 is about 9992.9959471622. The cubic root of 99859968 is about 463.9421251636.

The spelling of 99859968 in words is "ninety-nine million, eight hundred fifty-nine thousand, nine hundred sixty-eight".