16989683 has 4 divisors (see below), whose sum is σ = 17016048. Its totient is φ = 16963320.

The previous prime is 16989677. The next prime is 16989689. The reversal of 16989683 is 38698961.

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

It is an interprime number because it is at equal distance from previous prime (16989677) and next prime (16989689).

It is a cyclic number.

It is not a de Polignac number, because 16989683 - 2¹⁰ = 16988659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16989689) 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, 12191 + ... + 13512.

It is an arithmetic number, because the mean of its divisors is an integer number (4254012).

Almost surely, 2^16989683 is an apocalyptic number.

16989683 is a deficient number, since it is larger than the sum of its proper divisors (26365).

16989683 is an equidigital number, since it uses as much as digits as its factorization.

16989683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26364.

The product of its digits is 559872, while the sum is 50.

The square root of 16989683 is about 4121.8543157176. The cubic root of 16989683 is about 257.0761330258.

The spelling of 16989683 in words is "sixteen million, nine hundred eighty-nine thousand, six hundred eighty-three".