16290497 has 2 divisors, whose sum is σ = 16290498. Its totient is φ = 16290496.

The previous prime is 16290473. The next prime is 16290499. The reversal of 16290497 is 79409261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14205361 + 2085136 = 3769^2 + 1444^2 .

It is a cyclic number.

It is not a de Polignac number, because 16290497 - 2⁶ = 16290433 is a prime.

Together with 16290499, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16290497.

It is not a weakly prime, because it can be changed into another prime (16290499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8145248 + 8145249.

It is an arithmetic number, because the mean of its divisors is an integer number (8145249).

Almost surely, 2^16290497 is an apocalyptic number.

It is an amenable number.

16290497 is a deficient number, since it is larger than the sum of its proper divisors (1).

16290497 is an equidigital number, since it uses as much as digits as its factorization.

16290497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 16290497 is about 4036.1487831843. The cubic root of 16290497 is about 253.5000862352.

The spelling of 16290497 in words is "sixteen million, two hundred ninety thousand, four hundred ninety-seven".