13997629 has 2 divisors, whose sum is σ = 13997630. Its totient is φ = 13997628.

The previous prime is 13997617. The next prime is 13997651. The reversal of 13997629 is 92679931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13860729 + 136900 = 3723^2 + 370^2 .

It is a cyclic number.

It is not a de Polignac number, because 13997629 - 2¹¹ = 13995581 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 (13997689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6998814 + 6998815.

It is an arithmetic number, because the mean of its divisors is an integer number (6998815).

Almost surely, 2^13997629 is an apocalyptic number.

It is an amenable number.

13997629 is a deficient number, since it is larger than the sum of its proper divisors (1).

13997629 is an equidigital number, since it uses as much as digits as its factorization.

13997629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 183708, while the sum is 46.

The square root of 13997629 is about 3741.3405351558. The cubic root of 13997629 is about 241.0006198224. Note that the first 3 decimals are identical.

The spelling of 13997629 in words is "thirteen million, nine hundred ninety-seven thousand, six hundred twenty-nine".