16942297 has 2 divisors, whose sum is σ = 16942298. Its totient is φ = 16942296.

The previous prime is 16942291. The next prime is 16942309. The reversal of 16942297 is 79224961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16941456 + 841 = 4116^2 + 29^2 .

It is an emirp because it is prime and its reverse (79224961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16942297 - 2⁷ = 16942169 is a prime.

It is not a weakly prime, because it can be changed into another prime (16942291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8471148 + 8471149.

It is an arithmetic number, because the mean of its divisors is an integer number (8471149).

Almost surely, 2^16942297 is an apocalyptic number.

It is an amenable number.

16942297 is a deficient number, since it is larger than the sum of its proper divisors (1).

16942297 is an equidigital number, since it uses as much as digits as its factorization.

16942297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 16942297 is about 4116.1021610256. The cubic root of 16942297 is about 256.8369064185.

The spelling of 16942297 in words is "sixteen million, nine hundred forty-two thousand, two hundred ninety-seven".