12963617 has 4 divisors (see below), whose sum is σ = 13030980. Its totient is φ = 12896256.

The previous prime is 12963607. The next prime is 12963619. The reversal of 12963617 is 71636921.

12963617 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: 71636921 = 37 ⋅1936133.

It can be written as a sum of positive squares in 2 ways, for example, as 2825761 + 10137856 = 1681^2 + 3184^2 .

It is a cyclic number.

It is not a de Polignac number, because 12963617 - 2¹² = 12959521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12963619) 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, 33392 + ... + 33777.

It is an arithmetic number, because the mean of its divisors is an integer number (3257745).

Almost surely, 2^12963617 is an apocalyptic number.

It is an amenable number.

12963617 is a deficient number, since it is larger than the sum of its proper divisors (67363).

12963617 is an equidigital number, since it uses as much as digits as its factorization.

12963617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67362.

The product of its digits is 13608, while the sum is 35.

The square root of 12963617 is about 3600.5023260651. The cubic root of 12963617 is about 234.9139084071.

It can be divided in two parts, 1296 and 3617, that added together give a cube (4913 = 17³).

The spelling of 12963617 in words is "twelve million, nine hundred sixty-three thousand, six hundred seventeen".