99909088 has 24 divisors (see below), whose sum is σ = 199190880. Its totient is φ = 49320960.

The previous prime is 99909083. The next prime is 99909107. The reversal of 99909088 is 88090999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99909083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17233 + ... + 22288.

It is an arithmetic number, because the mean of its divisors is an integer number (8299620).

Almost surely, 2^99909088 is an apocalyptic number.

It is an amenable number.

99909088 is a deficient number, since it is larger than the sum of its proper divisors (99281792).

99909088 is a wasteful number, since it uses less digits than its factorization.

99909088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39610 (or 39602 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 52.

The square root of 99909088 is about 9995.4533664061. The cubic root of 99909088 is about 464.0181820065.

The spelling of 99909088 in words is "ninety-nine million, nine hundred nine thousand, eighty-eight".