12969787 has 2 divisors, whose sum is σ = 12969788. Its totient is φ = 12969786.

The previous prime is 12969767. The next prime is 12969797. The reversal of 12969787 is 78796921.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12969787 - 2¹⁵ = 12937019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12969787.

It is not a weakly prime, because it can be changed into another prime (12969767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6484893 + 6484894.

It is an arithmetic number, because the mean of its divisors is an integer number (6484894).

Almost surely, 2^12969787 is an apocalyptic number.

12969787 is a deficient number, since it is larger than the sum of its proper divisors (1).

12969787 is an equidigital number, since it uses as much as digits as its factorization.

12969787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 49.

The square root of 12969787 is about 3601.3590490258. The cubic root of 12969787 is about 234.9511713851.

The spelling of 12969787 in words is "twelve million, nine hundred sixty-nine thousand, seven hundred eighty-seven".