16997767 has 2 divisors, whose sum is σ = 16997768. Its totient is φ = 16997766.

The previous prime is 16997707. The next prime is 16997779. The reversal of 16997767 is 76779961.

It is a strong prime.

It is an emirp because it is prime and its reverse (76779961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16997767 - 2⁷ = 16997639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16997707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8498883 + 8498884.

It is an arithmetic number, because the mean of its divisors is an integer number (8498884).

Almost surely, 2^16997767 is an apocalyptic number.

16997767 is a deficient number, since it is larger than the sum of its proper divisors (1).

16997767 is an equidigital number, since it uses as much as digits as its factorization.

16997767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1000188, while the sum is 52.

The square root of 16997767 is about 4122.8348256994. The cubic root of 16997767 is about 257.1169003929.

The spelling of 16997767 in words is "sixteen million, nine hundred ninety-seven thousand, seven hundred sixty-seven".