12286687 has 4 divisors (see below), whose sum is σ = 14041936. Its totient is φ = 10531440.

The previous prime is 12286679. The next prime is 12286697. The reversal of 12286687 is 78668221.

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

It is a cyclic number.

It is not a de Polignac number, because 12286687 - 2³ = 12286679 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 (12286607) 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, 877614 + ... + 877627.

It is an arithmetic number, because the mean of its divisors is an integer number (3510484).

Almost surely, 2^12286687 is an apocalyptic number.

12286687 is a deficient number, since it is larger than the sum of its proper divisors (1755249).

12286687 is an equidigital number, since it uses as much as digits as its factorization.

12286687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755248.

The product of its digits is 64512, while the sum is 40.

The square root of 12286687 is about 3505.2370818534. The cubic root of 12286687 is about 230.7517118866.

The spelling of 12286687 in words is "twelve million, two hundred eighty-six thousand, six hundred eighty-seven".