13287797 has 2 divisors, whose sum is σ = 13287798. Its totient is φ = 13287796.

The previous prime is 13287787. The next prime is 13287811. The reversal of 13287797 is 79778231.

13287797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12013156 + 1274641 = 3466^2 + 1129^2 .

It is a cyclic number.

It is not a de Polignac number, because 13287797 - 2⁸ = 13287541 is a prime.

It is a super-2 number, since 2×13287797² = 353131098226418, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13287737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6643898 + 6643899.

It is an arithmetic number, because the mean of its divisors is an integer number (6643899).

Almost surely, 2^13287797 is an apocalyptic number.

It is an amenable number.

13287797 is a deficient number, since it is larger than the sum of its proper divisors (1).

13287797 is an equidigital number, since it uses as much as digits as its factorization.

13287797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 148176, while the sum is 44.

The square root of 13287797 is about 3645.2430645980. The cubic root of 13287797 is about 236.8559659404.

The spelling of 13287797 in words is "thirteen million, two hundred eighty-seven thousand, seven hundred ninety-seven".