16990983 has 12 divisors (see below), whose sum is σ = 24782160. Its totient is φ = 11216736.

The previous prime is 16990913. The next prime is 16990993. The reversal of 16990983 is 38909961.

It is not a de Polignac number, because 16990983 - 2¹⁷ = 16859911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16990913) 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, 8238 + ... + 10091.

It is an arithmetic number, because the mean of its divisors is an integer number (2065180).

Almost surely, 2^16990983 is an apocalyptic number.

16990983 is a deficient number, since it is larger than the sum of its proper divisors (7791177).

16990983 is a wasteful number, since it uses less digits than its factorization.

16990983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18438 (or 18435 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 16990983 is about 4122.0120087161. The cubic root of 16990983 is about 257.0826897589.

The spelling of 16990983 in words is "sixteen million, nine hundred ninety thousand, nine hundred eighty-three".