99902089 has 8 divisors (see below), whose sum is σ = 114521408. Its totient is φ = 85369680.

The previous prime is 99902063. The next prime is 99902093. The reversal of 99902089 is 98020999.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99902089 - 2⁹ = 99901577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99902039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19242 + ... + 23875.

It is an arithmetic number, because the mean of its divisors is an integer number (14315176).

Almost surely, 2^99902089 is an apocalyptic number.

It is an amenable number.

99902089 is a deficient number, since it is larger than the sum of its proper divisors (14619319).

99902089 is a wasteful number, since it uses less digits than its factorization.

99902089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43455.

The product of its (nonzero) digits is 104976, while the sum is 46.

The square root of 99902089 is about 9995.1032510925. The cubic root of 99902089 is about 464.0073463586.

The spelling of 99902089 in words is "ninety-nine million, nine hundred two thousand, eighty-nine".