99988800 has 168 divisors, whose sum is σ = 337511136. Its totient is φ = 25896960.

The previous prime is 99988771. The next prime is 99988807. The reversal of 99988800 is 888999.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99988807) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177319 + ... + 177881.

Almost surely, 2^99988800 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 99988800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168755568).

99988800 is an abundant number, since it is smaller than the sum of its proper divisors (237522336).

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

99988800 is a wasteful number, since it uses less digits than its factorization.

99988800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 51.

The square root of 99988800 is about 9999.4399843191. The cubic root of 99988800 is about 464.1415541160.

The spelling of 99988800 in words is "ninety-nine million, nine hundred eighty-eight thousand, eight hundred".