12869775 has 36 divisors (see below), whose sum is σ = 23560992. Its totient is φ = 6712320.

The previous prime is 12869749. The next prime is 12869807. The reversal of 12869775 is 57796821.

It is not a de Polignac number, because 12869775 - 2¹⁸ = 12607631 is a prime.

It is a super-2 number, since 2×12869775² = 331262217101250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12869775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9967 + ... + 11183.

It is an arithmetic number, because the mean of its divisors is an integer number (654472).

Almost surely, 2^12869775 is an apocalyptic number.

12869775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12869775 is a deficient number, since it is larger than the sum of its proper divisors (10691217).

12869775 is a wasteful number, since it uses less digits than its factorization.

12869775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280 (or 1272 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 12869775 is about 3587.4468637180. The cubic root of 12869775 is about 234.3456976700.

The spelling of 12869775 in words is "twelve million, eight hundred sixty-nine thousand, seven hundred seventy-five".