12297797 has 4 divisors (see below), whose sum is σ = 12319980. Its totient is φ = 12275616.

The previous prime is 12297787. The next prime is 12297811. The reversal of 12297797 is 79779221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79779221 = 71 ⋅1123651.

It can be written as a sum of positive squares in 2 ways, for example, as 8491396 + 3806401 = 2914^2 + 1951^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12297797 is a prime.

It is a super-2 number, since 2×12297797² = 302471622106418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12297737) 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, 10238 + ... + 11375.

It is an arithmetic number, because the mean of its divisors is an integer number (3079995).

Almost surely, 2^12297797 is an apocalyptic number.

It is an amenable number.

12297797 is a deficient number, since it is larger than the sum of its proper divisors (22183).

12297797 is an equidigital number, since it uses as much as digits as its factorization.

12297797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22182.

The product of its digits is 111132, while the sum is 44.

The square root of 12297797 is about 3506.8214953145. The cubic root of 12297797 is about 230.8212418637.

The spelling of 12297797 in words is "twelve million, two hundred ninety-seven thousand, seven hundred ninety-seven".