13989337 has 2 divisors, whose sum is σ = 13989338. Its totient is φ = 13989336.

The previous prime is 13989289. The next prime is 13989341. The reversal of 13989337 is 73398931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13980121 + 9216 = 3739^2 + 96^2 .

It is an emirp because it is prime and its reverse (73398931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13989337 - 2²³ = 5600729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13989293 and 13989302.

It is not a weakly prime, because it can be changed into another prime (13989637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6994668 + 6994669.

It is an arithmetic number, because the mean of its divisors is an integer number (6994669).

Almost surely, 2^13989337 is an apocalyptic number.

It is an amenable number.

13989337 is a deficient number, since it is larger than the sum of its proper divisors (1).

13989337 is an equidigital number, since it uses as much as digits as its factorization.

13989337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 43.

The square root of 13989337 is about 3740.2322120425. The cubic root of 13989337 is about 240.9530219549.

The spelling of 13989337 in words is "thirteen million, nine hundred eighty-nine thousand, three hundred thirty-seven".