12609449 has 8 divisors (see below), whose sum is σ = 13009920. Its totient is φ = 12213936.

The previous prime is 12609439. The next prime is 12609463. The reversal of 12609449 is 94490621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12609449 - 2⁴ = 12609433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12609419) 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 7 ways as a sum of consecutive naturals, for example, 4307 + ... + 6615.

It is an arithmetic number, because the mean of its divisors is an integer number (1626240).

Almost surely, 2^12609449 is an apocalyptic number.

It is an amenable number.

12609449 is a deficient number, since it is larger than the sum of its proper divisors (400471).

12609449 is a wasteful number, since it uses less digits than its factorization.

12609449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 12609449 is about 3550.9785975136. The cubic root of 12609449 is about 232.7548306239.

The spelling of 12609449 in words is "twelve million, six hundred nine thousand, four hundred forty-nine".