12801797 has 4 divisors (see below), whose sum is σ = 12982176. Its totient is φ = 12621420.

The previous prime is 12801793. The next prime is 12801809. The reversal of 12801797 is 79710821.

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.

It is a cyclic number.

It is not a de Polignac number, because 12801797 - 2² = 12801793 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 (12801793) 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 3 ways as a sum of consecutive naturals, for example, 90083 + ... + 90224.

It is an arithmetic number, because the mean of its divisors is an integer number (3245544).

Almost surely, 2^12801797 is an apocalyptic number.

12801797 is the 1913-rd centered heptagonal number.

It is an amenable number.

12801797 is a deficient number, since it is larger than the sum of its proper divisors (180379).

12801797 is an equidigital number, since it uses as much as digits as its factorization.

12801797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180378.

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

The square root of 12801797 is about 3577.9598935706. The cubic root of 12801797 is about 233.9323653362.

The spelling of 12801797 in words is "twelve million, eight hundred one thousand, seven hundred ninety-seven".