99800512 has 56 divisors (see below), whose sum is σ = 227323904. Its totient is φ = 42584832.

The previous prime is 99800497. The next prime is 99800531. The reversal of 99800512 is 21500899.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164113 + ... + 164719.

Almost surely, 2^99800512 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 99800512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113661952).

99800512 is an abundant number, since it is smaller than the sum of its proper divisors (127523392).

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

99800512 is a wasteful number, since it uses less digits than its factorization.

99800512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 99800512 is about 9990.0206205993. The cubic root of 99800512 is about 463.8500308045.

The spelling of 99800512 in words is "ninety-nine million, eight hundred thousand, five hundred twelve".