99689044 has 36 divisors (see below), whose sum is σ = 215904864. Its totient is φ = 39435552.

The previous prime is 99689039. The next prime is 99689069. The reversal of 99689044 is 44098699.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5802 + ... + 15265.

Almost surely, 2^99689044 is an apocalyptic number.

It is an amenable number.

99689044 is an abundant number, since it is smaller than the sum of its proper divisors (116215820).

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

99689044 is a wasteful number, since it uses less digits than its factorization.

99689044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21104 (or 21089 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 99689044 is about 9984.4400944670. The cubic root of 99689044 is about 463.6772738521.

The spelling of 99689044 in words is "ninety-nine million, six hundred eighty-nine thousand, forty-four".