99969903 has 16 divisors (see below), whose sum is σ = 161568000. Its totient is φ = 60587640.

The previous prime is 99969853. The next prime is 99969941. The reversal of 99969903 is 30996999.

It is not a de Polignac number, because 99969903 - 2⁸ = 99969647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99969903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99969943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168003 + ... + 168596.

It is an arithmetic number, because the mean of its divisors is an integer number (10098000).

Almost surely, 2^99969903 is an apocalyptic number.

99969903 is a deficient number, since it is larger than the sum of its proper divisors (61598097).

99969903 is a wasteful number, since it uses less digits than its factorization.

99969903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336619 (or 336613 counting only the distinct ones).

The product of its (nonzero) digits is 1062882, while the sum is 54.

The square root of 99969903 is about 9998.4950367543. The cubic root of 99969903 is about 464.1123127225.

The spelling of 99969903 in words is "ninety-nine million, nine hundred sixty-nine thousand, nine hundred three".