99899982 has 96 divisors (see below), whose sum is σ = 270466560. Its totient is φ = 25945920.

The previous prime is 99899981. The next prime is 99899999. The reversal of 99899982 is 28999899.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99899981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115869 + ... + 116727.

It is an arithmetic number, because the mean of its divisors is an integer number (2817360).

Almost surely, 2^99899982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99899982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135233280).

99899982 is an abundant number, since it is smaller than the sum of its proper divisors (170566578).

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

99899982 is a wasteful number, since it uses less digits than its factorization.

99899982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958 (or 955 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 63.

The square root of 99899982 is about 9994.9978489242. The cubic root of 99899982 is about 464.0040842635.

The spelling of 99899982 in words is "ninety-nine million, eight hundred ninety-nine thousand, nine hundred eighty-two".