12863497 has 6 divisors (see below), whose sum is σ = 13081614. Its totient is φ = 12648960.

The previous prime is 12863483. The next prime is 12863507. The reversal of 12863497 is 79436821.

It can be written as a sum of positive squares in 3 ways, for example, as 3444736 + 9418761 = 1856^2 + 3069^2 .

It is not a de Polignac number, because 12863497 - 2⁷ = 12863369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12863467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1993 + ... + 5449.

It is an arithmetic number, because the mean of its divisors is an integer number (2180269).

Almost surely, 2^12863497 is an apocalyptic number.

It is an amenable number.

12863497 is a deficient number, since it is larger than the sum of its proper divisors (218117).

12863497 is an frugal number, since it uses more digits than its factorization.

12863497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3579 (or 3518 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 12863497 is about 3586.5717614457. The cubic root of 12863497 is about 234.3075861107.

The spelling of 12863497 in words is "twelve million, eight hundred sixty-three thousand, four hundred ninety-seven".