12776089 has 4 divisors (see below), whose sum is σ = 12831156. Its totient is φ = 12721024.

The previous prime is 12776083. The next prime is 12776111. The reversal of 12776089 is 98067721.

12776089 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 4481689 + 8294400 = 2117^2 + 2880^2 .

It is a cyclic number.

It is not a de Polignac number, because 12776089 - 2³ = 12776081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12776081) 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, 27184 + ... + 27649.

It is an arithmetic number, because the mean of its divisors is an integer number (3207789).

Almost surely, 2^12776089 is an apocalyptic number.

It is an amenable number.

12776089 is a deficient number, since it is larger than the sum of its proper divisors (55067).

12776089 is an equidigital number, since it uses as much as digits as its factorization.

12776089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55066.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 12776089 is about 3574.3655381060. The cubic root of 12776089 is about 233.7756695384.

The spelling of 12776089 in words is "twelve million, seven hundred seventy-six thousand, eighty-nine".