13239773 has 2 divisors, whose sum is σ = 13239774. Its totient is φ = 13239772.

The previous prime is 13239763. The next prime is 13239781. The reversal of 13239773 is 37793231.

13239773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7300804 + 5938969 = 2702^2 + 2437^2 .

It is a cyclic number.

It is not a de Polignac number, because 13239773 - 2⁴ = 13239757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13239703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6619886 + 6619887.

It is an arithmetic number, because the mean of its divisors is an integer number (6619887).

Almost surely, 2^13239773 is an apocalyptic number.

It is an amenable number.

13239773 is a deficient number, since it is larger than the sum of its proper divisors (1).

13239773 is an equidigital number, since it uses as much as digits as its factorization.

13239773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23814, while the sum is 35.

The square root of 13239773 is about 3638.6498869773. The cubic root of 13239773 is about 236.5702777048.

The spelling of 13239773 in words is "thirteen million, two hundred thirty-nine thousand, seven hundred seventy-three".