13997693 has 2 divisors, whose sum is σ = 13997694. Its totient is φ = 13997692.

The previous prime is 13997689. The next prime is 13997713. The reversal of 13997693 is 39679931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9078169 + 4919524 = 3013^2 + 2218^2 .

It is a cyclic number.

It is not a de Polignac number, because 13997693 - 2² = 13997689 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13997663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6998846 + 6998847.

It is an arithmetic number, because the mean of its divisors is an integer number (6998847).

Almost surely, 2^13997693 is an apocalyptic number.

It is an amenable number.

13997693 is a deficient number, since it is larger than the sum of its proper divisors (1).

13997693 is an equidigital number, since it uses as much as digits as its factorization.

13997693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 275562, while the sum is 47.

The square root of 13997693 is about 3741.3490882301. The cubic root of 13997693 is about 241.0009871231. Note that the first 3 decimals are identical.

The spelling of 13997693 in words is "thirteen million, nine hundred ninety-seven thousand, six hundred ninety-three".