99399099 has 4 divisors (see below), whose sum is σ = 132532136. Its totient is φ = 66266064.

The previous prime is 99399071. The next prime is 99399103. The reversal of 99399099 is 99099399.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 99399099 - 2¹² = 99395003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99399019) 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, 16566514 + ... + 16566519.

It is an arithmetic number, because the mean of its divisors is an integer number (33133034).

Almost surely, 2^99399099 is an apocalyptic number.

99399099 is a deficient number, since it is larger than the sum of its proper divisors (33133037).

99399099 is a wasteful number, since it uses less digits than its factorization.

99399099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33133036.

The product of its (nonzero) digits is 1594323, while the sum is 57.

The square root of 99399099 is about 9969.9096786280. The cubic root of 99399099 is about 463.2273031132.

The spelling of 99399099 in words is "ninety-nine million, three hundred ninety-nine thousand, ninety-nine".