16970897 has 2 divisors, whose sum is σ = 16970898. Its totient is φ = 16970896.

The previous prime is 16970893. The next prime is 16970909. The reversal of 16970897 is 79807961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15335056 + 1635841 = 3916^2 + 1279^2 .

It is a cyclic number.

It is not a de Polignac number, because 16970897 - 2² = 16970893 is a prime.

It is a super-2 number, since 2×16970897² = 576022689969218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16970893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8485448 + 8485449.

It is an arithmetic number, because the mean of its divisors is an integer number (8485449).

Almost surely, 2^16970897 is an apocalyptic number.

It is an amenable number.

16970897 is a deficient number, since it is larger than the sum of its proper divisors (1).

16970897 is an equidigital number, since it uses as much as digits as its factorization.

16970897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 16970897 is about 4119.5748567055. The cubic root of 16970897 is about 256.9813458277.

The spelling of 16970897 in words is "sixteen million, nine hundred seventy thousand, eight hundred ninety-seven".