16910897 has 2 divisors, whose sum is σ = 16910898. Its totient is φ = 16910896.

The previous prime is 16910891. The next prime is 16910909. The reversal of 16910897 is 79801961.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8708401 + 8202496 = 2951^2 + 2864^2 .

It is a cyclic number.

It is not a de Polignac number, because 16910897 - 2²² = 12716593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16910891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8455448 + 8455449.

It is an arithmetic number, because the mean of its divisors is an integer number (8455449).

Almost surely, 2^16910897 is an apocalyptic number.

It is an amenable number.

16910897 is a deficient number, since it is larger than the sum of its proper divisors (1).

16910897 is an equidigital number, since it uses as much as digits as its factorization.

16910897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 16910897 is about 4112.2861038600. The cubic root of 16910897 is about 256.6781387650.

The spelling of 16910897 in words is "sixteen million, nine hundred ten thousand, eight hundred ninety-seven".