16397567 has 2 divisors, whose sum is σ = 16397568. Its totient is φ = 16397566.

The previous prime is 16397539. The next prime is 16397587. The reversal of 16397567 is 76579361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16397567 - 2¹⁸ = 16135423 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16397527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8198783 + 8198784.

It is an arithmetic number, because the mean of its divisors is an integer number (8198784).

Almost surely, 2^16397567 is an apocalyptic number.

16397567 is a deficient number, since it is larger than the sum of its proper divisors (1).

16397567 is an equidigital number, since it uses as much as digits as its factorization.

16397567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140, while the sum is 44.

The square root of 16397567 is about 4049.3909418578. The cubic root of 16397567 is about 254.0542540191.

The spelling of 16397567 in words is "sixteen million, three hundred ninety-seven thousand, five hundred sixty-seven".