12669818 has 8 divisors (see below), whose sum is σ = 21719712. Its totient is φ = 5429916.

The previous prime is 12669817. The next prime is 12669823. The reversal of 12669818 is 81896621.

12669818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12669817) 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, 452480 + ... + 452507.

It is an arithmetic number, because the mean of its divisors is an integer number (2714964).

Almost surely, 2^12669818 is an apocalyptic number.

12669818 is a deficient number, since it is larger than the sum of its proper divisors (9049894).

12669818 is an equidigital number, since it uses as much as digits as its factorization.

12669818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904996.

The product of its digits is 41472, while the sum is 41.

The square root of 12669818 is about 3559.4687805907. The cubic root of 12669818 is about 233.1256851056.

The spelling of 12669818 in words is "twelve million, six hundred sixty-nine thousand, eight hundred eighteen".