12469669 has 4 divisors (see below), whose sum is σ = 12476844. Its totient is φ = 12462496.

The previous prime is 12469651. The next prime is 12469697. The reversal of 12469669 is 96696421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6890625 + 5579044 = 2625^2 + 2362^2 .

It is a cyclic number.

It is not a de Polignac number, because 12469669 - 2⁵ = 12469637 is a prime.

It is a super-2 number, since 2×12469669² = 310985289939122, 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 (12469609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849 + ... + 5065.

It is an arithmetic number, because the mean of its divisors is an integer number (3119211).

Almost surely, 2^12469669 is an apocalyptic number.

It is an amenable number.

12469669 is a deficient number, since it is larger than the sum of its proper divisors (7175).

12469669 is an equidigital number, since it uses as much as digits as its factorization.

12469669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7174.

The product of its digits is 139968, while the sum is 43.

The square root of 12469669 is about 3531.2418495481. The cubic root of 12469669 is about 231.8915776079.

The spelling of 12469669 in words is "twelve million, four hundred sixty-nine thousand, six hundred sixty-nine".