12765629 has 4 divisors (see below), whose sum is σ = 13110684. Its totient is φ = 12420576.

The previous prime is 12765619. The next prime is 12765631. The reversal of 12765629 is 92656721.

It is a happy number.

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 5769604 + 6996025 = 2402^2 + 2645^2 .

It is a cyclic number.

It is not a de Polignac number, because 12765629 - 2¹² = 12761533 is a prime.

It is a super-2 number, since 2×12765629² = 325922567531282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12765592 and 12765601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12765619) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 172472 + ... + 172545.

It is an arithmetic number, because the mean of its divisors is an integer number (3277671).

Almost surely, 2^12765629 is an apocalyptic number.

It is an amenable number.

12765629 is a deficient number, since it is larger than the sum of its proper divisors (345055).

12765629 is an equidigital number, since it uses as much as digits as its factorization.

12765629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345054.

The product of its digits is 45360, while the sum is 38.

The square root of 12765629 is about 3572.9020417582. The cubic root of 12765629 is about 233.7118534222.

It can be divided in two parts, 127 and 65629, that added together give a palindrome (65756).

The spelling of 12765629 in words is "twelve million, seven hundred sixty-five thousand, six hundred twenty-nine".