12810669 has 4 divisors (see below), whose sum is σ = 17080896. Its totient is φ = 8540444.

The previous prime is 12810667. The next prime is 12810709. The reversal of 12810669 is 96601821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12810669 - 2¹ = 12810667 is a prime.

It is a super-2 number, since 2×12810669² = 328226480455122, 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 (12810667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2135109 + ... + 2135114.

It is an arithmetic number, because the mean of its divisors is an integer number (4270224).

Almost surely, 2^12810669 is an apocalyptic number.

It is an amenable number.

12810669 is a deficient number, since it is larger than the sum of its proper divisors (4270227).

12810669 is an equidigital number, since it uses as much as digits as its factorization.

12810669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4270226.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 12810669 is about 3579.1994915064. The cubic root of 12810669 is about 233.9863933939.

The spelling of 12810669 in words is "twelve million, eight hundred ten thousand, six hundred sixty-nine".