16397273 has 2 divisors, whose sum is σ = 16397274. Its totient is φ = 16397272.

The previous prime is 16397263. The next prime is 16397279. The reversal of 16397273 is 37279361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13271449 + 3125824 = 3643^2 + 1768^2 .

It is a cyclic number.

It is not a de Polignac number, because 16397273 - 2⁴ = 16397257 is a prime.

It is not a weakly prime, because it can be changed into another prime (16397279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8198636 + 8198637.

It is an arithmetic number, because the mean of its divisors is an integer number (8198637).

Almost surely, 2^16397273 is an apocalyptic number.

It is an amenable number.

16397273 is a deficient number, since it is larger than the sum of its proper divisors (1).

16397273 is an equidigital number, since it uses as much as digits as its factorization.

16397273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 38.

The square root of 16397273 is about 4049.3546399396. The cubic root of 16397273 is about 254.0527356557.

The spelling of 16397273 in words is "sixteen million, three hundred ninety-seven thousand, two hundred seventy-three".