16992497 has 2 divisors, whose sum is σ = 16992498. Its totient is φ = 16992496.

The previous prime is 16992431. The next prime is 16992511. The reversal of 16992497 is 79429961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16313521 + 678976 = 4039^2 + 824^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16992497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16992097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8496248 + 8496249.

It is an arithmetic number, because the mean of its divisors is an integer number (8496249).

Almost surely, 2^16992497 is an apocalyptic number.

It is an amenable number.

16992497 is a deficient number, since it is larger than the sum of its proper divisors (1).

16992497 is an equidigital number, since it uses as much as digits as its factorization.

16992497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 47.

The square root of 16992497 is about 4122.1956528045. The cubic root of 16992497 is about 257.0903254095.

The spelling of 16992497 in words is "sixteen million, nine hundred ninety-two thousand, four hundred ninety-seven".