16990203 has 8 divisors (see below), whose sum is σ = 23180608. Its totient is φ = 11063304.

The previous prime is 16990177. The next prime is 16990213. The reversal of 16990203 is 30209961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16990203 - 2⁹ = 16989691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16990213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65725 + ... + 65982.

It is an arithmetic number, because the mean of its divisors is an integer number (2897576).

Almost surely, 2^16990203 is an apocalyptic number.

16990203 is a deficient number, since it is larger than the sum of its proper divisors (6190405).

16990203 is a wasteful number, since it uses less digits than its factorization.

16990203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131753.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 16990203 is about 4121.9173936410. The cubic root of 16990203 is about 257.0787557591.

The spelling of 16990203 in words is "sixteen million, nine hundred ninety thousand, two hundred three".