12890517 has 4 divisors (see below), whose sum is σ = 17187360. Its totient is φ = 8593676.

The previous prime is 12890491. The next prime is 12890543. The reversal of 12890517 is 71509821.

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.

It is an interprime number because it is at equal distance from previous prime (12890491) and next prime (12890543).

It is a cyclic number.

It is not a de Polignac number, because 12890517 - 2¹⁰ = 12889493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12890567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2148417 + ... + 2148422.

It is an arithmetic number, because the mean of its divisors is an integer number (4296840).

Almost surely, 2^12890517 is an apocalyptic number.

It is an amenable number.

12890517 is a deficient number, since it is larger than the sum of its proper divisors (4296843).

12890517 is an equidigital number, since it uses as much as digits as its factorization.

12890517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4296842.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 12890517 is about 3590.3366137453. The cubic root of 12890517 is about 234.4715271022.

The spelling of 12890517 in words is "twelve million, eight hundred ninety thousand, five hundred seventeen".