12895287 has 16 divisors (see below), whose sum is σ = 17845248. Its totient is φ = 8274240.

The previous prime is 12895283. The next prime is 12895301. The reversal of 12895287 is 78259821.

It is not a de Polignac number, because 12895287 - 2² = 12895283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12895283) 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 15 ways as a sum of consecutive naturals, for example, 28888 + ... + 29330.

It is an arithmetic number, because the mean of its divisors is an integer number (1115328).

Almost surely, 2^12895287 is an apocalyptic number.

12895287 is a deficient number, since it is larger than the sum of its proper divisors (4949961).

12895287 is a wasteful number, since it uses less digits than its factorization.

12895287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790.

The product of its digits is 80640, while the sum is 42.

The square root of 12895287 is about 3591.0008354218. Note that the first 3 decimals coincide. The cubic root of 12895287 is about 234.5004447750.

The spelling of 12895287 in words is "twelve million, eight hundred ninety-five thousand, two hundred eighty-seven".