12862869 has 4 divisors (see below), whose sum is σ = 17150496. Its totient is φ = 8575244.

The previous prime is 12862849. The next prime is 12862873. The reversal of 12862869 is 96826821.

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 12862869 - 2⁹ = 12862357 is a prime.

It is a super-2 number, since 2×12862869² = 330906797822322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12862869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12862849) 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, 2143809 + ... + 2143814.

It is an arithmetic number, because the mean of its divisors is an integer number (4287624).

Almost surely, 2^12862869 is an apocalyptic number.

It is an amenable number.

12862869 is a deficient number, since it is larger than the sum of its proper divisors (4287627).

12862869 is an equidigital number, since it uses as much as digits as its factorization.

12862869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287626.

The product of its digits is 82944, while the sum is 42.

The square root of 12862869 is about 3586.4842115922. The cubic root of 12862869 is about 234.3037730584.

It can be divided in two parts, 12862 and 869, that added together give a palindrome (13731).

The spelling of 12862869 in words is "twelve million, eight hundred sixty-two thousand, eight hundred sixty-nine".