12564767 has 2 divisors, whose sum is σ = 12564768. Its totient is φ = 12564766.

The previous prime is 12564749. The next prime is 12564781. The reversal of 12564767 is 76746521.

It is a strong prime.

It is an emirp because it is prime and its reverse (76746521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12564767 - 2¹⁴ = 12548383 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12564767.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12564787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6282383 + 6282384.

It is an arithmetic number, because the mean of its divisors is an integer number (6282384).

Almost surely, 2^12564767 is an apocalyptic number.

12564767 is a deficient number, since it is larger than the sum of its proper divisors (1).

12564767 is an equidigital number, since it uses as much as digits as its factorization.

12564767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 38.

The square root of 12564767 is about 3544.6815089652. The cubic root of 12564767 is about 232.4795804320.

It can be divided in two parts, 12564 and 767, that added together give a palindrome (13331).

The spelling of 12564767 in words is "twelve million, five hundred sixty-four thousand, seven hundred sixty-seven".