12669789 has 32 divisors (see below), whose sum is σ = 19676160. Its totient is φ = 7230960.

The previous prime is 12669707. The next prime is 12669791. The reversal of 12669789 is 98796621.

12669789 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12669789 - 2¹⁹ = 12145501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12669089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75784 + ... + 75950.

It is an arithmetic number, because the mean of its divisors is an integer number (614880).

Almost surely, 2^12669789 is an apocalyptic number.

12669789 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12669789 is a deficient number, since it is larger than the sum of its proper divisors (7006371).

12669789 is a wasteful number, since it uses less digits than its factorization.

12669789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 200 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The square root of 12669789 is about 3559.4647069468. The cubic root of 12669789 is about 233.1255072380.

The spelling of 12669789 in words is "twelve million, six hundred sixty-nine thousand, seven hundred eighty-nine".