12726765 has 24 divisors (see below), whose sum is σ = 22161048. Its totient is φ = 6756480.

The previous prime is 12726757. The next prime is 12726773. The reversal of 12726765 is 56762721.

12726765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12726757) and next prime (12726773).

It can be written as a sum of positive squares in 4 ways, for example, as 427716 + 12299049 = 654^2 + 3507^2 .

It is not a de Polignac number, because 12726765 - 2³ = 12726757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11955 + ... + 12975.

It is an arithmetic number, because the mean of its divisors is an integer number (923377).

Almost surely, 2^12726765 is an apocalyptic number.

12726765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12726765 is a deficient number, since it is larger than the sum of its proper divisors (9434283).

12726765 is a wasteful number, since it uses less digits than its factorization.

12726765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1306 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 12726765 is about 3567.4591798646. The cubic root of 12726765 is about 233.4744395934.

The spelling of 12726765 in words is "twelve million, seven hundred twenty-six thousand, seven hundred sixty-five".