16216297 has 2 divisors, whose sum is σ = 16216298. Its totient is φ = 16216296.

The previous prime is 16216271. The next prime is 16216303. The reversal of 16216297 is 79261261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15492096 + 724201 = 3936^2 + 851^2 .

It is an emirp because it is prime and its reverse (79261261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16216297 - 2¹⁵ = 16183529 is a prime.

It is not a weakly prime, because it can be changed into another prime (16216247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8108148 + 8108149.

It is an arithmetic number, because the mean of its divisors is an integer number (8108149).

Almost surely, 2^16216297 is an apocalyptic number.

It is an amenable number.

16216297 is a deficient number, since it is larger than the sum of its proper divisors (1).

16216297 is an equidigital number, since it uses as much as digits as its factorization.

16216297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 16216297 is about 4026.9463616989. The cubic root of 16216297 is about 253.1146194392.

The spelling of 16216297 in words is "sixteen million, two hundred sixteen thousand, two hundred ninety-seven".