12842297 has 4 divisors (see below), whose sum is σ = 13830180. Its totient is φ = 11854416.

The previous prime is 12842287. The next prime is 12842311. The reversal of 12842297 is 79224821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79224821 = 13 ⋅6094217.

It can be written as a sum of positive squares in 2 ways, for example, as 5851561 + 6990736 = 2419^2 + 2644^2 .

It is a cyclic number.

It is not a de Polignac number, because 12842297 - 2¹² = 12838201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12842237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493922 + ... + 493947.

It is an arithmetic number, because the mean of its divisors is an integer number (3457545).

Almost surely, 2^12842297 is an apocalyptic number.

It is an amenable number.

12842297 is a deficient number, since it is larger than the sum of its proper divisors (987883).

12842297 is an equidigital number, since it uses as much as digits as its factorization.

12842297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987882.

The product of its digits is 16128, while the sum is 35.

The square root of 12842297 is about 3583.6150741953. The cubic root of 12842297 is about 234.1787965556.

The spelling of 12842297 in words is "twelve million, eight hundred forty-two thousand, two hundred ninety-seven".