16997417 has 2 divisors, whose sum is σ = 16997418. Its totient is φ = 16997416.

The previous prime is 16997413. The next prime is 16997429. The reversal of 16997417 is 71479961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14868736 + 2128681 = 3856^2 + 1459^2 .

It is a cyclic number.

It is not a de Polignac number, because 16997417 - 2² = 16997413 is a prime.

It is not a weakly prime, because it can be changed into another prime (16997413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8498708 + 8498709.

It is an arithmetic number, because the mean of its divisors is an integer number (8498709).

Almost surely, 2^16997417 is an apocalyptic number.

It is an amenable number.

16997417 is a deficient number, since it is larger than the sum of its proper divisors (1).

16997417 is an equidigital number, since it uses as much as digits as its factorization.

16997417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 44.

The square root of 16997417 is about 4122.7923789587. The cubic root of 16997417 is about 257.1151356212.

The spelling of 16997417 in words is "sixteen million, nine hundred ninety-seven thousand, four hundred seventeen".