12995669 has 4 divisors (see below), whose sum is σ = 13003980. Its totient is φ = 12987360.

The previous prime is 12995663. The next prime is 12995687. The reversal of 12995669 is 96659921.

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 5499025 + 7496644 = 2345^2 + 2738^2 .

It is a cyclic number.

It is not a de Polignac number, because 12995669 - 2⁸ = 12995413 is a prime.

It is a super-2 number, since 2×12995669² = 337774825515122, 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 (12995663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022 + ... + 5199.

It is an arithmetic number, because the mean of its divisors is an integer number (3250995).

Almost surely, 2^12995669 is an apocalyptic number.

It is an amenable number.

12995669 is a deficient number, since it is larger than the sum of its proper divisors (8311).

12995669 is an equidigital number, since it uses as much as digits as its factorization.

12995669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8310.

The product of its digits is 262440, while the sum is 47.

The square root of 12995669 is about 3604.9506237950. The cubic root of 12995669 is about 235.1073539986.

The spelling of 12995669 in words is "twelve million, nine hundred ninety-five thousand, six hundred sixty-nine".