99938403 has 12 divisors (see below), whose sum is σ = 147427488. Its totient is φ = 65207760.

The previous prime is 99938401. The next prime is 99938431. The reversal of 99938403 is 30483999.

It is not a de Polignac number, because 99938403 - 2¹ = 99938401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99938401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117708 + ... + 118553.

It is an arithmetic number, because the mean of its divisors is an integer number (12285624).

Almost surely, 2^99938403 is an apocalyptic number.

99938403 is a deficient number, since it is larger than the sum of its proper divisors (47489085).

99938403 is a wasteful number, since it uses less digits than its factorization.

99938403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236314 (or 236311 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 99938403 is about 9996.9196755801. The cubic root of 99938403 is about 464.0635611376.

The spelling of 99938403 in words is "ninety-nine million, nine hundred thirty-eight thousand, four hundred three".