99800500 has 24 divisors (see below), whose sum is σ = 217965384. Its totient is φ = 39920000.

The previous prime is 99800497. The next prime is 99800531. The reversal of 99800500 is 500899.

It can be written as a sum of positive squares in 4 ways, for example, as 7717284 + 92083216 = 2778^2 + 9596^2 .

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, 99301 + ... + 100300.

It is an arithmetic number, because the mean of its divisors is an integer number (9081891).

Almost surely, 2^99800500 is an apocalyptic number.

It is an amenable number.

99800500 is an abundant number, since it is smaller than the sum of its proper divisors (118164884).

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

99800500 is a wasteful number, since it uses less digits than its factorization.

99800500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199620 (or 199608 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 99800500 is about 9990.0200200000. The cubic root of 99800500 is about 463.8500122134.

The spelling of 99800500 in words is "ninety-nine million, eight hundred thousand, five hundred".