12810797 has 4 divisors (see below), whose sum is σ = 12819840. Its totient is φ = 12801756.

The previous prime is 12810773. The next prime is 12810799. The reversal of 12810797 is 79701821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12810797 - 2²⁰ = 11762221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12810799) 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 in 3 ways as a sum of consecutive naturals, for example, 1883 + ... + 5400.

It is an arithmetic number, because the mean of its divisors is an integer number (3204960).

Almost surely, 2^12810797 is an apocalyptic number.

It is an amenable number.

12810797 is a deficient number, since it is larger than the sum of its proper divisors (9043).

12810797 is an equidigital number, since it uses as much as digits as its factorization.

12810797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9042.

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 12810797 is about 3579.2173725551. The cubic root of 12810797 is about 233.9871726964.

The spelling of 12810797 in words is "twelve million, eight hundred ten thousand, seven hundred ninety-seven".