99969800 has 108 divisors (see below), whose sum is σ = 273081015. Its totient is φ = 33936000.

The previous prime is 99969791. The next prime is 99969827. The reversal of 99969800 is 896999.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 88774084 + 11195716 = 9422^2 + 3346^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=7070.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 989750 + ... + 989850.

Almost surely, 2^99969800 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 99969800

99969800 is an abundant number, since it is smaller than the sum of its proper divisors (173111215).

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

99969800 is a wasteful number, since it uses less digits than its factorization.

99969800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 50.

The square root of 99969800 is about 9998.4898859778. The cubic root of 99969800 is about 464.1121533292.

Multiplying 99969800 by its sum of digits (50), we get a square (4998490000 = 70700²).

99969800 divided by its sum of digits (50) gives a square (1999396 = 1414²).

The spelling of 99969800 in words is "ninety-nine million, nine hundred sixty-nine thousand, eight hundred".