12650869 has 20 divisors (see below), whose sum is σ = 16133760. Its totient is φ = 9837240.

The previous prime is 12650809. The next prime is 12650881. The reversal of 12650869 is 96805621.

It is not a de Polignac number, because 12650869 - 2²¹ = 10553717 is a prime.

It is a super-2 number, since 2×12650869² = 320088972910322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12650809) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26172 + ... + 26650.

It is an arithmetic number, because the mean of its divisors is an integer number (806688).

Almost surely, 2^12650869 is an apocalyptic number.

It is an amenable number.

12650869 is a deficient number, since it is larger than the sum of its proper divisors (3482891).

12650869 is an frugal number, since it uses more digits than its factorization.

12650869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 12650869 is about 3556.8060110161. The cubic root of 12650869 is about 233.0094060685.

The spelling of 12650869 in words is "twelve million, six hundred fifty thousand, eight hundred sixty-nine".