16890659 has 2 divisors, whose sum is σ = 16890660. Its totient is φ = 16890658.

The previous prime is 16890637. The next prime is 16890737. The reversal of 16890659 is 95609861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16890659 - 2¹² = 16886563 is a prime.

It is a super-2 number, since 2×16890659² = 570588722908562, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16890859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8445329 + 8445330.

It is an arithmetic number, because the mean of its divisors is an integer number (8445330).

Almost surely, 2^16890659 is an apocalyptic number.

16890659 is a deficient number, since it is larger than the sum of its proper divisors (1).

16890659 is an equidigital number, since it uses as much as digits as its factorization.

16890659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 16890659 is about 4109.8246921250. The cubic root of 16890659 is about 256.5757052912.

The spelling of 16890659 in words is "sixteen million, eight hundred ninety thousand, six hundred fifty-nine".