16797689 has 2 divisors, whose sum is σ = 16797690. Its totient is φ = 16797688.

The previous prime is 16797611. The next prime is 16797701. The reversal of 16797689 is 98679761.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15272464 + 1525225 = 3908^2 + 1235^2 .

It is a cyclic number.

It is not a de Polignac number, because 16797689 - 2¹² = 16793593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16797689.

It is not a weakly prime, because it can be changed into another prime (16797289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8398844 + 8398845.

It is an arithmetic number, because the mean of its divisors is an integer number (8398845).

Almost surely, 2^16797689 is an apocalyptic number.

It is an amenable number.

16797689 is a deficient number, since it is larger than the sum of its proper divisors (1).

16797689 is an equidigital number, since it uses as much as digits as its factorization.

16797689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 53.

The square root of 16797689 is about 4098.4983835546. The cubic root of 16797689 is about 256.1040887350.

The spelling of 16797689 in words is "sixteen million, seven hundred ninety-seven thousand, six hundred eighty-nine".