99902403 has 24 divisors (see below), whose sum is σ = 152491248. Its totient is φ = 65336544.

The previous prime is 99902393. The next prime is 99902441. The reversal of 99902403 is 30420999.

It is not a de Polignac number, because 99902403 - 2⁵ = 99902371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99902503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9001 + ... + 16757.

It is an arithmetic number, because the mean of its divisors is an integer number (6353802).

Almost surely, 2^99902403 is an apocalyptic number.

99902403 is a deficient number, since it is larger than the sum of its proper divisors (52588845).

99902403 is an equidigital number, since it uses as much as digits as its factorization.

99902403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7825 (or 7813 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 99902403 is about 9995.1189587718. The cubic root of 99902403 is about 464.0078324951.

The spelling of 99902403 in words is "ninety-nine million, nine hundred two thousand, four hundred three".