12777065 has 16 divisors (see below), whose sum is σ = 17748480. Its totient is φ = 8648640.

The previous prime is 12777049. The next prime is 12777073. The reversal of 12777065 is 56077721.

12777065 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12777065 - 2⁴ = 12777049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455 + ... + 5075.

It is an arithmetic number, because the mean of its divisors is an integer number (1109280).

Almost surely, 2^12777065 is an apocalyptic number.

It is an amenable number.

12777065 is a deficient number, since it is larger than the sum of its proper divisors (4971415).

12777065 is an equidigital number, since it uses as much as digits as its factorization.

12777065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4712.

The product of its (nonzero) digits is 20580, while the sum is 35.

The square root of 12777065 is about 3574.5020632250. The cubic root of 12777065 is about 233.7816223054.

The spelling of 12777065 in words is "twelve million, seven hundred seventy-seven thousand, sixty-five".