16797491 has 2 divisors, whose sum is σ = 16797492. Its totient is φ = 16797490.

The previous prime is 16797481. The next prime is 16797493. The reversal of 16797491 is 19479761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16797491 - 2⁶ = 16797427 is a prime.

Together with 16797493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16797493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8398745 + 8398746.

It is an arithmetic number, because the mean of its divisors is an integer number (8398746).

Almost surely, 2^16797491 is an apocalyptic number.

16797491 is a deficient number, since it is larger than the sum of its proper divisors (1).

16797491 is an equidigital number, since it uses as much as digits as its factorization.

16797491 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 16797491 is about 4098.4742282952. The cubic root of 16797491 is about 256.1030824694.

The spelling of 16797491 in words is "sixteen million, seven hundred ninety-seven thousand, four hundred ninety-one".