12959863 has 6 divisors (see below), whose sum is σ = 15075816. Its totient is φ = 11108412.

The previous prime is 12959861. The next prime is 12959867. The reversal of 12959863 is 36895921.

It is a happy number.

12959863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12959863 - 2¹ = 12959861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12959861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132195 + ... + 132292.

It is an arithmetic number, because the mean of its divisors is an integer number (2512636).

Almost surely, 2^12959863 is an apocalyptic number.

12959863 is a deficient number, since it is larger than the sum of its proper divisors (2115953).

12959863 is an equidigital number, since it uses as much as digits as its factorization.

12959863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264501 (or 264494 counting only the distinct ones).

The product of its digits is 116640, while the sum is 43.

The square root of 12959863 is about 3599.9809721719. The cubic root of 12959863 is about 234.8912307869.

The spelling of 12959863 in words is "twelve million, nine hundred fifty-nine thousand, eight hundred sixty-three".