12963919 has 4 divisors (see below), whose sum is σ = 13020760. Its totient is φ = 12907080.

The previous prime is 12963901. The next prime is 12963931. The reversal of 12963919 is 91936921.

12963919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91936921 = 241 ⋅381481.

It is a cyclic number.

It is not a de Polignac number, because 12963919 - 2⁹ = 12963407 is a prime.

It is a super-2 number, since 2×12963919² = 336126391677122, 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 (12963989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28077 + ... + 28534.

It is an arithmetic number, because the mean of its divisors is an integer number (3255190).

Almost surely, 2^12963919 is an apocalyptic number.

12963919 is a deficient number, since it is larger than the sum of its proper divisors (56841).

12963919 is an equidigital number, since it uses as much as digits as its factorization.

12963919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56840.

The product of its digits is 26244, while the sum is 40.

The square root of 12963919 is about 3600.5442644134. The cubic root of 12963919 is about 234.9157325752.

The spelling of 12963919 in words is "twelve million, nine hundred sixty-three thousand, nine hundred nineteen".