13959629 has 2 divisors, whose sum is σ = 13959630. Its totient is φ = 13959628.

The previous prime is 13959599. The next prime is 13959653. The reversal of 13959629 is 92695931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13801225 + 158404 = 3715^2 + 398^2 .

It is a cyclic number.

It is not a de Polignac number, because 13959629 - 2²⁰ = 12911053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13959629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13959679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6979814 + 6979815.

It is an arithmetic number, because the mean of its divisors is an integer number (6979815).

Almost surely, 2^13959629 is an apocalyptic number.

It is an amenable number.

13959629 is a deficient number, since it is larger than the sum of its proper divisors (1).

13959629 is an equidigital number, since it uses as much as digits as its factorization.

13959629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131220, while the sum is 44.

The square root of 13959629 is about 3736.2586901873. The cubic root of 13959629 is about 240.7823370616.

The spelling of 13959629 in words is "thirteen million, nine hundred fifty-nine thousand, six hundred twenty-nine".