12449669 has 4 divisors (see below), whose sum is σ = 12456780. Its totient is φ = 12442560.

The previous prime is 12449663. The next prime is 12449677. The reversal of 12449669 is 96694421.

12449669 is nontrivially palindromic in base 3.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96694421 = 3583 ⋅26987.

It can be written as a sum of positive squares in 2 ways, for example, as 1809025 + 10640644 = 1345^2 + 3262^2 .

It is a cyclic number.

It is not a de Polignac number, because 12449669 - 2¹⁶ = 12384133 is a prime.

It is a super-2 number, since 2×12449669² = 309988516419122, 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 (12449663) 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, 1127 + ... + 5115.

It is an arithmetic number, because the mean of its divisors is an integer number (3114195).

Almost surely, 2^12449669 is an apocalyptic number.

It is an amenable number.

12449669 is a deficient number, since it is larger than the sum of its proper divisors (7111).

12449669 is an equidigital number, since it uses as much as digits as its factorization.

12449669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7110.

The product of its digits is 93312, while the sum is 41.

The square root of 12449669 is about 3528.4088481921. The cubic root of 12449669 is about 231.7675349331.

The spelling of 12449669 in words is "twelve million, four hundred forty-nine thousand, six hundred sixty-nine".