16373903 has 12 divisors (see below), whose sum is σ = 20264688. Its totient is φ = 12954240.

The previous prime is 16373899. The next prime is 16373911. The reversal of 16373903 is 30937361.

It is not a de Polignac number, because 16373903 - 2² = 16373899 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16373903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16373923) 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, 5738 + ... + 8103.

It is an arithmetic number, because the mean of its divisors is an integer number (1688724).

Almost surely, 2^16373903 is an apocalyptic number.

16373903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16373903 is a deficient number, since it is larger than the sum of its proper divisors (3890785).

16373903 is a wasteful number, since it uses less digits than its factorization.

16373903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13874 (or 13861 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 32.

The square root of 16373903 is about 4046.4679660168. The cubic root of 16373903 is about 253.9319831519.

The spelling of 16373903 in words is "sixteen million, three hundred seventy-three thousand, nine hundred three".