16297693 has 2 divisors, whose sum is σ = 16297694. Its totient is φ = 16297692.

The previous prime is 16297691. The next prime is 16297711. The reversal of 16297693 is 39679261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16297369 + 324 = 4037^2 + 18^2 .

It is a cyclic number.

It is not a de Polignac number, because 16297693 - 2¹ = 16297691 is a prime.

It is a super-2 number, since 2×16297693² = 531229594244498, which contains 22 as substring.

Together with 16297691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16297691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8148846 + 8148847.

It is an arithmetic number, because the mean of its divisors is an integer number (8148847).

Almost surely, 2^16297693 is an apocalyptic number.

It is an amenable number.

16297693 is a deficient number, since it is larger than the sum of its proper divisors (1).

16297693 is an equidigital number, since it uses as much as digits as its factorization.

16297693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 43.

The square root of 16297693 is about 4037.0401286091. The cubic root of 16297693 is about 253.5374069317.

The spelling of 16297693 in words is "sixteen million, two hundred ninety-seven thousand, six hundred ninety-three".