12886247 has 4 divisors (see below), whose sum is σ = 14057736. Its totient is φ = 11714760.

The previous prime is 12886241. The next prime is 12886253. The reversal of 12886247 is 74268821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74268821 = 11 ⋅6751711.

It is an interprime number because it is at equal distance from previous prime (12886241) and next prime (12886253).

It is a cyclic number.

It is not a de Polignac number, because 12886247 - 2⁶ = 12886183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12886247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12886241) 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, 585728 + ... + 585749.

It is an arithmetic number, because the mean of its divisors is an integer number (3514434).

Almost surely, 2^12886247 is an apocalyptic number.

12886247 is a deficient number, since it is larger than the sum of its proper divisors (1171489).

12886247 is a wasteful number, since it uses less digits than its factorization.

12886247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171488.

The product of its digits is 43008, while the sum is 38.

The square root of 12886247 is about 3589.7419127285. The cubic root of 12886247 is about 234.4456345801.

The spelling of 12886247 in words is "twelve million, eight hundred eighty-six thousand, two hundred forty-seven".