12776 has 8 divisors (see below), whose sum is σ = 23970. Its totient is φ = 6384.

The previous prime is 12763. The next prime is 12781. The reversal of 12776 is 67721.

It is a happy number.

12776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12100 + 676 = 110^2 + 26^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 15.

It is a nialpdrome in base 11.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 791 + ... + 806.

2¹²⁷⁷⁶ is an apocalyptic number.

It is an amenable number.

12776 is a deficient number, since it is larger than the sum of its proper divisors (11194).

12776 is a wasteful number, since it uses less digits than its factorization.

12776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603 (or 1599 counting only the distinct ones).

The product of its digits is 588, while the sum is 23.

The square root of 12776 is about 113.0309692076. The cubic root of 12776 is about 23.3775126699.

Subtracting 12776 from its reverse (67721), we obtain a palindrome (54945).

The spelling of 12776 in words is "twelve thousand, seven hundred seventy-six".