99988000 has 96 divisors (see below), whose sum is σ = 280844928. Its totient is φ = 34272000.

The previous prime is 99987997. The next prime is 99988003. The reversal of 99988000 is 88999.

It is an interprime number because it is at equal distance from previous prime (99987997) and next prime (99988003).

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (99988003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26215 + ... + 29785.

It is an arithmetic number, because the mean of its divisors is an integer number (2925468).

Almost surely, 2^99988000 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 99988000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140422464).

99988000 is an abundant number, since it is smaller than the sum of its proper divisors (180856928).

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

99988000 is a wasteful number, since it uses less digits than its factorization.

99988000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3603 (or 3585 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 99988000 is about 9999.3999819989. The cubic root of 99988000 is about 464.1403162632.

The spelling of 99988000 in words is "ninety-nine million, nine hundred eighty-eight thousand".