12321797 has 2 divisors, whose sum is σ = 12321798. Its totient is φ = 12321796.

The previous prime is 12321763. The next prime is 12321847. The reversal of 12321797 is 79712321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8444836 + 3876961 = 2906^2 + 1969^2 .

It is a cyclic number.

It is not a de Polignac number, because 12321797 - 2⁶ = 12321733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160898 + 6160899.

It is an arithmetic number, because the mean of its divisors is an integer number (6160899).

Almost surely, 2^12321797 is an apocalyptic number.

It is an amenable number.

12321797 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321797 is an equidigital number, since it uses as much as digits as its factorization.

12321797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292, while the sum is 32.

The square root of 12321797 is about 3510.2417295679. The cubic root of 12321797 is about 230.9712988210.

The spelling of 12321797 in words is "twelve million, three hundred twenty-one thousand, seven hundred ninety-seven".