12669777 has 24 divisors (see below), whose sum is σ = 20101536. Its totient is φ = 7947072.

The previous prime is 12669707. The next prime is 12669791. The reversal of 12669777 is 77796621.

It is not a de Polignac number, because 12669777 - 2¹⁰ = 12668753 is a prime.

Its product of digits (222264) is a multiple of the sum of its prime divisors (3087).

It is not an unprimeable number, because it can be changed into a prime (12669707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2598 + ... + 5664.

It is an arithmetic number, because the mean of its divisors is an integer number (837564).

Almost surely, 2^12669777 is an apocalyptic number.

12669777 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12669777 is a deficient number, since it is larger than the sum of its proper divisors (7431759).

12669777 is an equidigital number, since it uses as much as digits as its factorization.

12669777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099 (or 3087 counting only the distinct ones).

The product of its digits is 222264, while the sum is 45.

The square root of 12669777 is about 3559.4630212997. The cubic root of 12669777 is about 233.1254336375.

The spelling of 12669777 in words is "twelve million, six hundred sixty-nine thousand, seven hundred seventy-seven".