16979659 has 2 divisors, whose sum is σ = 16979660. Its totient is φ = 16979658.

The previous prime is 16979657. The next prime is 16979671. The reversal of 16979659 is 95697961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16979659 - 2¹ = 16979657 is a prime.

Together with 16979657, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16979657) 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, 8489829 + 8489830.

It is an arithmetic number, because the mean of its divisors is an integer number (8489830).

Almost surely, 2^16979659 is an apocalyptic number.

16979659 is a deficient number, since it is larger than the sum of its proper divisors (1).

16979659 is an equidigital number, since it uses as much as digits as its factorization.

16979659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 918540, while the sum is 52.

The square root of 16979659 is about 4120.6381787291. The cubic root of 16979659 is about 257.0255643341.

The spelling of 16979659 in words is "sixteen million, nine hundred seventy-nine thousand, six hundred fifty-nine".