12963819 has 24 divisors (see below), whose sum is σ = 19305216. Its totient is φ = 7730800.

The previous prime is 12963817. The next prime is 12963857. The reversal of 12963819 is 91836921.

It is not a de Polignac number, because 12963819 - 2¹ = 12963817 is a prime.

It is a super-2 number, since 2×12963819² = 336121206129522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12963817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25522 + ... + 26024.

It is an arithmetic number, because the mean of its divisors is an integer number (804384).

Almost surely, 2^12963819 is an apocalyptic number.

12963819 is a deficient number, since it is larger than the sum of its proper divisors (6341397).

12963819 is a wasteful number, since it uses less digits than its factorization.

12963819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 588 counting only the distinct ones).

The product of its digits is 23328, while the sum is 39.

The square root of 12963819 is about 3600.5303775972. The cubic root of 12963819 is about 234.9151285492.

It can be divided in two parts, 1296 and 3819, that added together give a palindrome (5115).

The spelling of 12963819 in words is "twelve million, nine hundred sixty-three thousand, eight hundred nineteen".