13389997 has 2 divisors, whose sum is σ = 13389998. Its totient is φ = 13389996.

The previous prime is 13389953. The next prime is 13390001. The reversal of 13389997 is 79998331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13205956 + 184041 = 3634^2 + 429^2 .

It is a cyclic number.

It is not a de Polignac number, because 13389997 - 2¹⁵ = 13357229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13389997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13389907) 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, 6694998 + 6694999.

It is an arithmetic number, because the mean of its divisors is an integer number (6694999).

Almost surely, 2^13389997 is an apocalyptic number.

It is an amenable number.

13389997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13389997 is an equidigital number, since it uses as much as digits as its factorization.

13389997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 49.

The square root of 13389997 is about 3659.2344827846. The cubic root of 13389997 is about 237.4616565985.

The spelling of 13389997 in words is "thirteen million, three hundred eighty-nine thousand, nine hundred ninety-seven".