12856463 has 4 divisors (see below), whose sum is σ = 12865128. Its totient is φ = 12847800.

The previous prime is 12856453. The next prime is 12856469. The reversal of 12856463 is 36465821.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 36465821 = 7 ⋅5209403.

It is a cyclic number.

It is not a de Polignac number, because 12856463 - 2⁴ = 12856447 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 (12856469) 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, 1481 + ... + 5282.

It is an arithmetic number, because the mean of its divisors is an integer number (3216282).

Almost surely, 2^12856463 is an apocalyptic number.

12856463 is a deficient number, since it is larger than the sum of its proper divisors (8665).

12856463 is an equidigital number, since it uses as much as digits as its factorization.

12856463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8664.

The product of its digits is 34560, while the sum is 35.

The square root of 12856463 is about 3585.5910252007. The cubic root of 12856463 is about 234.2648704049.

The spelling of 12856463 in words is "twelve million, eight hundred fifty-six thousand, four hundred sixty-three".