16976689 has 2 divisors, whose sum is σ = 16976690. Its totient is φ = 16976688.

The previous prime is 16976681. The next prime is 16976699. The reversal of 16976689 is 98667961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9659664 + 7317025 = 3108^2 + 2705^2 .

It is a cyclic number.

It is not a de Polignac number, because 16976689 - 2³ = 16976681 is a prime.

It is not a weakly prime, because it can be changed into another prime (16976681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8488344 + 8488345.

It is an arithmetic number, because the mean of its divisors is an integer number (8488345).

Almost surely, 2^16976689 is an apocalyptic number.

It is an amenable number.

16976689 is a deficient number, since it is larger than the sum of its proper divisors (1).

16976689 is an equidigital number, since it uses as much as digits as its factorization.

16976689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 52.

The square root of 16976689 is about 4120.2777818977. The cubic root of 16976689 is about 257.0105775699.

The spelling of 16976689 in words is "sixteen million, nine hundred seventy-six thousand, six hundred eighty-nine".