12765427 has 2 divisors, whose sum is σ = 12765428. Its totient is φ = 12765426.

The previous prime is 12765413. The next prime is 12765433. The reversal of 12765427 is 72456721.

12765427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (72456721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12765427 is a prime.

It is a super-2 number, since 2×12765427² = 325912252984658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12765392 and 12765401.

It is not a weakly prime, because it can be changed into another prime (12765457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6382713 + 6382714.

It is an arithmetic number, because the mean of its divisors is an integer number (6382714).

Almost surely, 2^12765427 is an apocalyptic number.

12765427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12765427 is an equidigital number, since it uses as much as digits as its factorization.

12765427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 34.

The square root of 12765427 is about 3572.8737733091. The cubic root of 12765427 is about 233.7106206838.

The spelling of 12765427 in words is "twelve million, seven hundred sixty-five thousand, four hundred twenty-seven".