13243797 has 32 divisors (see below), whose sum is σ = 22732800. Its totient is φ = 7463664.

The previous prime is 13243793. The next prime is 13243819. The reversal of 13243797 is 79734231.

13243797 is a `hidden beast` number, since 132 + 437 + 97 = 666.

It is not a de Polignac number, because 13243797 - 2² = 13243793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13243793) 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 in 31 ways as a sum of consecutive naturals, for example, 14488 + ... + 15374.

It is an arithmetic number, because the mean of its divisors is an integer number (710400).

Almost surely, 2^13243797 is an apocalyptic number.

It is an amenable number.

13243797 is a deficient number, since it is larger than the sum of its proper divisors (9489003).

13243797 is an equidigital number, since it uses as much as digits as its factorization.

13243797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982 (or 976 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 13243797 is about 3639.2027973170. The cubic root of 13243797 is about 236.5942424251.

The spelling of 13243797 in words is "thirteen million, two hundred forty-three thousand, seven hundred ninety-seven".