Search a number
12877 = 79163

12877 has 4 divisors (see below), whose sum is σ = 13120. Its totient is φ = 12636.

The previous prime is 12853. The next prime is 12889. The reversal of 12877 is 77821.

It is a happy number.

12877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77821 = 591319.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12877 is a prime.

It is a Duffinian number.

12877 is a lucky number.

It is a plaindrome in base 14.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3 + ... + 160.

It is an arithmetic number, because the mean of its divisors is an integer number (3280).

212877 is an apocalyptic number.

It is an amenable number.

12877 is a deficient number, since it is larger than the sum of its proper divisors (243).

12877 is an equidigital number, since it uses as much as digits as its factorization.

12877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242.

The product of its digits is 784, while the sum is 25.

The square root of 12877 is about 113.4768698899. The cubic root of 12877 is about 23.4389542801.

It can be divided in two parts, 1287 and 7, that multiplied together give a palindrome (9009).

The spelling of 12877 in words is "twelve thousand, eight hundred seventy-seven".

Divisors: 1 79 163 12877