13392989 has 2 divisors, whose sum is σ = 13392990. Its totient is φ = 13392988.

The previous prime is 13392971. The next prime is 13392997. The reversal of 13392989 is 98929331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8508889 + 4884100 = 2917^2 + 2210^2 .

It is a cyclic number.

It is not a de Polignac number, because 13392989 - 2²⁰ = 12344413 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 (13392089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6696494 + 6696495.

It is an arithmetic number, because the mean of its divisors is an integer number (6696495).

Almost surely, 2^13392989 is an apocalyptic number.

It is an amenable number.

13392989 is a deficient number, since it is larger than the sum of its proper divisors (1).

13392989 is an equidigital number, since it uses as much as digits as its factorization.

13392989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 44.

The square root of 13392989 is about 3659.6432886280. The cubic root of 13392989 is about 237.4793422476.

The spelling of 13392989 in words is "thirteen million, three hundred ninety-two thousand, nine hundred eighty-nine".