99018903 has 4 divisors (see below), whose sum is σ = 132025208. Its totient is φ = 66012600.

The previous prime is 99018889. The next prime is 99018911. The reversal of 99018903 is 30981099.

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

It is not a de Polignac number, because 99018903 - 2¹⁰ = 99017879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99018923) 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, 16503148 + ... + 16503153.

It is an arithmetic number, because the mean of its divisors is an integer number (33006302).

Almost surely, 2^99018903 is an apocalyptic number.

99018903 is a deficient number, since it is larger than the sum of its proper divisors (33006305).

99018903 is a wasteful number, since it uses less digits than its factorization.

99018903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33006304.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 99018903 is about 9950.8242372177. The cubic root of 99018903 is about 462.6359423128.

The spelling of 99018903 in words is "ninety-nine million, eighteen thousand, nine hundred three".