99609800 has 48 divisors (see below), whose sum is σ = 245224260. Its totient is φ = 37498880.

The previous prime is 99609793. The next prime is 99609833. The reversal of 99609800 is 890699.

It can be written as a sum of positive squares in 6 ways, for example, as 60497284 + 39112516 = 7778^2 + 6254^2 .

It is a super-2 number, since 2×99609800² = 19844224512080000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11249 + ... + 18048.

Almost surely, 2^99609800 is an apocalyptic number.

It is an amenable number.

99609800 is an abundant number, since it is smaller than the sum of its proper divisors (145614460).

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

99609800 is a wasteful number, since it uses less digits than its factorization.

99609800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29330 (or 29321 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 99609800 is about 9980.4709307728. The cubic root of 99609800 is about 463.5543804337.

The spelling of 99609800 in words is "ninety-nine million, six hundred nine thousand, eight hundred".