12887017 has 16 divisors (see below), whose sum is σ = 15244992. Its totient is φ = 10739520.

The previous prime is 12887009. The next prime is 12887027. The reversal of 12887017 is 71078821.

12887017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12887017 - 2³ = 12887009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12887027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32263 + ... + 32659.

It is an arithmetic number, because the mean of its divisors is an integer number (952812).

Almost surely, 2^12887017 is an apocalyptic number.

It is an amenable number.

12887017 is a deficient number, since it is larger than the sum of its proper divisors (2357975).

12887017 is a wasteful number, since it uses less digits than its factorization.

12887017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648.

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 12887017 is about 3589.8491611766. The cubic root of 12887017 is about 234.4503041461.

The spelling of 12887017 in words is "twelve million, eight hundred eighty-seven thousand, seventeen".