12775869 has 12 divisors (see below), whose sum is σ = 18847296. Its totient is φ = 8335752.

The previous prime is 12775853. The next prime is 12775871. The reversal of 12775869 is 96857721.

It is not a de Polignac number, because 12775869 - 2⁴ = 12775853 is a prime.

It is a super-2 number, since 2×12775869² = 326445657410322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12775849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14679 + ... + 15524.

It is an arithmetic number, because the mean of its divisors is an integer number (1570608).

Almost surely, 2^12775869 is an apocalyptic number.

It is an amenable number.

12775869 is a deficient number, since it is larger than the sum of its proper divisors (6071427).

12775869 is a wasteful number, since it uses less digits than its factorization.

12775869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30256 (or 30253 counting only the distinct ones).

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

The square root of 12775869 is about 3574.3347632811. The cubic root of 12775869 is about 233.7743276843.

The spelling of 12775869 in words is "twelve million, seven hundred seventy-five thousand, eight hundred sixty-nine".