12776233 has 4 divisors (see below), whose sum is σ = 13017348. Its totient is φ = 12535120.

The previous prime is 12776213. The next prime is 12776243. The reversal of 12776233 is 33267721.

12776233 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.

It can be written as a sum of positive squares in 2 ways, for example, as 11343424 + 1432809 = 3368^2 + 1197^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12776233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12776195 and 12776204.

It is not an unprimeable number, because it can be changed into a prime (12776213) 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, 120478 + ... + 120583.

It is an arithmetic number, because the mean of its divisors is an integer number (3254337).

Almost surely, 2^12776233 is an apocalyptic number.

It is an amenable number.

12776233 is a deficient number, since it is larger than the sum of its proper divisors (241115).

12776233 is an equidigital number, since it uses as much as digits as its factorization.

12776233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241114.

The product of its digits is 10584, while the sum is 31.

The square root of 12776233 is about 3574.3856814843. The cubic root of 12776233 is about 233.7765478346.

The spelling of 12776233 in words is "twelve million, seven hundred seventy-six thousand, two hundred thirty-three".