12893617 has 4 divisors (see below), whose sum is σ = 14065776. Its totient is φ = 11721460.

The previous prime is 12893597. The next prime is 12893627. The reversal of 12893617 is 71639821.

12893617 = 609² + 610² + ... + 641².

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71639821 = 11 ⋅6512711.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12893617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12893627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586063 + ... + 586084.

It is an arithmetic number, because the mean of its divisors is an integer number (3516444).

Almost surely, 2^12893617 is an apocalyptic number.

It is an amenable number.

12893617 is a deficient number, since it is larger than the sum of its proper divisors (1172159).

12893617 is a wasteful number, since it uses less digits than its factorization.

12893617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172158.

The product of its digits is 18144, while the sum is 37.

The square root of 12893617 is about 3590.7683021883. The cubic root of 12893617 is about 234.4903213697.

It can be divided in two parts, 128936 and 17, that multiplied together give a palindrome (2191912).

The spelling of 12893617 in words is "twelve million, eight hundred ninety-three thousand, six hundred seventeen".