12869779 has 8 divisors (see below), whose sum is σ = 13889792. Its totient is φ = 11854080.

The previous prime is 12869749. The next prime is 12869807. The reversal of 12869779 is 97796821.

It is a happy number.

12869779 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12869779 - 2⁷ = 12869651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12869749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8014 + ... + 9484.

It is an arithmetic number, because the mean of its divisors is an integer number (1736224).

Almost surely, 2^12869779 is an apocalyptic number.

12869779 is a deficient number, since it is larger than the sum of its proper divisors (1020013).

12869779 is a wasteful number, since it uses less digits than its factorization.

12869779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157.

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

The square root of 12869779 is about 3587.4474212175. The cubic root of 12869779 is about 234.3457219487.

The spelling of 12869779 in words is "twelve million, eight hundred sixty-nine thousand, seven hundred seventy-nine".