12764387 has 2 divisors, whose sum is σ = 12764388. Its totient is φ = 12764386.

The previous prime is 12764369. The next prime is 12764417. The reversal of 12764387 is 78346721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12764387 - 2¹⁰ = 12763363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12764387.

It is not a weakly prime, because it can be changed into another prime (12764317) 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 as a sum of consecutive naturals, namely, 6382193 + 6382194.

It is an arithmetic number, because the mean of its divisors is an integer number (6382194).

Almost surely, 2^12764387 is an apocalyptic number.

12764387 is a deficient number, since it is larger than the sum of its proper divisors (1).

12764387 is an equidigital number, since it uses as much as digits as its factorization.

12764387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 38.

The square root of 12764387 is about 3572.7282292388. The cubic root of 12764387 is about 233.7042737059.

The spelling of 12764387 in words is "twelve million, seven hundred sixty-four thousand, three hundred eighty-seven".