16390097 has 2 divisors, whose sum is σ = 16390098. Its totient is φ = 16390096.

The previous prime is 16390079. The next prime is 16390109. The reversal of 16390097 is 79009361.

Together with previous prime (16390079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12453841 + 3936256 = 3529^2 + 1984^2 .

It is a cyclic number.

It is not a de Polignac number, because 16390097 - 2¹² = 16386001 is a prime.

It is not a weakly prime, because it can be changed into another prime (16390067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8195048 + 8195049.

It is an arithmetic number, because the mean of its divisors is an integer number (8195049).

Almost surely, 2^16390097 is an apocalyptic number.

It is an amenable number.

16390097 is a deficient number, since it is larger than the sum of its proper divisors (1).

16390097 is an equidigital number, since it uses as much as digits as its factorization.

16390097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 16390097 is about 4048.4684758560. The cubic root of 16390097 is about 254.0156695646.

The spelling of 16390097 in words is "sixteen million, three hundred ninety thousand, ninety-seven".