12763765 has 24 divisors (see below), whose sum is σ = 18139680. Its totient is φ = 8594208.

The previous prime is 12763739. The next prime is 12763769. The reversal of 12763765 is 56736721.

It is not a de Polignac number, because 12763765 - 2⁷ = 12763637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12763769) 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 in 23 ways as a sum of consecutive naturals, for example, 14014 + ... + 14896.

It is an arithmetic number, because the mean of its divisors is an integer number (755820).

Almost surely, 2^12763765 is an apocalyptic number.

It is an amenable number.

12763765 is a deficient number, since it is larger than the sum of its proper divisors (5375915).

12763765 is an equidigital number, since it uses as much as digits as its factorization.

12763765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961 (or 954 counting only the distinct ones).

The product of its digits is 52920, while the sum is 37.

The square root of 12763765 is about 3572.6411798556. The cubic root of 12763765 is about 233.7004775602.

It can be divided in two parts, 1276 and 3765, that added together give a square (5041 = 71²).

The spelling of 12763765 in words is "twelve million, seven hundred sixty-three thousand, seven hundred sixty-five".