16990679 has 2 divisors, whose sum is σ = 16990680. Its totient is φ = 16990678.

The previous prime is 16990663. The next prime is 16990691. The reversal of 16990679 is 97609961.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16990679 - 2⁴ = 16990663 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16990639) 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, 8495339 + 8495340.

It is an arithmetic number, because the mean of its divisors is an integer number (8495340).

Almost surely, 2^16990679 is an apocalyptic number.

16990679 is a deficient number, since it is larger than the sum of its proper divisors (1).

16990679 is an equidigital number, since it uses as much as digits as its factorization.

16990679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183708, while the sum is 47.

The square root of 16990679 is about 4121.9751333554. The cubic root of 16990679 is about 257.0811565220.

The spelling of 16990679 in words is "sixteen million, nine hundred ninety thousand, six hundred seventy-nine".