12894517 has 4 divisors (see below), whose sum is σ = 13653036. Its totient is φ = 12136000.

The previous prime is 12894499. The next prime is 12894533. The reversal of 12894517 is 71549821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4186116 + 8708401 = 2046^2 + 2951^2 .

It is a cyclic number.

It is not a de Polignac number, because 12894517 - 2¹⁹ = 12370229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12894017) 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, 379234 + ... + 379267.

It is an arithmetic number, because the mean of its divisors is an integer number (3413259).

Almost surely, 2^12894517 is an apocalyptic number.

12894517 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12894517 is a deficient number, since it is larger than the sum of its proper divisors (758519).

12894517 is an equidigital number, since it uses as much as digits as its factorization.

12894517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758518.

The product of its digits is 20160, while the sum is 37.

The square root of 12894517 is about 3590.8936213706. The cubic root of 12894517 is about 234.4957772057.

The spelling of 12894517 in words is "twelve million, eight hundred ninety-four thousand, five hundred seventeen".