12670787 has 2 divisors, whose sum is σ = 12670788. Its totient is φ = 12670786.

The previous prime is 12670783. The next prime is 12670793. The reversal of 12670787 is 78707621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12670787 - 2² = 12670783 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 12670787.

It is not a weakly prime, because it can be changed into another prime (12670783) 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, 6335393 + 6335394.

It is an arithmetic number, because the mean of its divisors is an integer number (6335394).

Almost surely, 2^12670787 is an apocalyptic number.

12670787 is a deficient number, since it is larger than the sum of its proper divisors (1).

12670787 is an equidigital number, since it uses as much as digits as its factorization.

12670787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 12670787 is about 3559.6048938049. The cubic root of 12670787 is about 233.1316281804.

The spelling of 12670787 in words is "twelve million, six hundred seventy thousand, seven hundred eighty-seven".