12776473 has 2 divisors, whose sum is σ = 12776474. Its totient is φ = 12776472.

The previous prime is 12776471. The next prime is 12776513. The reversal of 12776473 is 37467721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9193024 + 3583449 = 3032^2 + 1893^2 .

It is a cyclic number.

It is not a de Polignac number, because 12776473 - 2¹ = 12776471 is a prime.

Together with 12776471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12776471) 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 as a sum of consecutive naturals, namely, 6388236 + 6388237.

It is an arithmetic number, because the mean of its divisors is an integer number (6388237).

Almost surely, 2^12776473 is an apocalyptic number.

It is an amenable number.

12776473 is a deficient number, since it is larger than the sum of its proper divisors (1).

12776473 is an equidigital number, since it uses as much as digits as its factorization.

12776473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49392, while the sum is 37.

The square root of 12776473 is about 3574.4192535292. The cubic root of 12776473 is about 233.7780116468.

It can be divided in two parts, 1277 and 6473, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 12776473 in words is "twelve million, seven hundred seventy-six thousand, four hundred seventy-three".