12907863 has 8 divisors (see below), whose sum is σ = 19122800. Its totient is φ = 8605224.

The previous prime is 12907847. The next prime is 12907883. The reversal of 12907863 is 36870921.

It is not a de Polignac number, because 12907863 - 2⁴ = 12907847 is a prime.

It is a super-2 number, since 2×12907863² = 333225854453538, 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 (12907883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239008 + ... + 239061.

It is an arithmetic number, because the mean of its divisors is an integer number (2390350).

Almost surely, 2^12907863 is an apocalyptic number.

12907863 is a deficient number, since it is larger than the sum of its proper divisors (6214937).

12907863 is an equidigital number, since it uses as much as digits as its factorization.

12907863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478078 (or 478072 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 12907863 is about 3592.7514525778. The cubic root of 12907863 is about 234.5766514135.

The spelling of 12907863 in words is "twelve million, nine hundred seven thousand, eight hundred sixty-three".