12449287 has 4 divisors (see below), whose sum is σ = 13181616. Its totient is φ = 11716960.

The previous prime is 12449273. The next prime is 12449293. The reversal of 12449287 is 78294421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12449287 - 2¹⁹ = 11924999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12449387) 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, 366139 + ... + 366172.

It is an arithmetic number, because the mean of its divisors is an integer number (3295404).

Almost surely, 2^12449287 is an apocalyptic number.

12449287 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12449287 is a deficient number, since it is larger than the sum of its proper divisors (732329).

12449287 is an equidigital number, since it uses as much as digits as its factorization.

12449287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732328.

The product of its digits is 32256, while the sum is 37.

The square root of 12449287 is about 3528.3547157280. The cubic root of 12449287 is about 231.7651644255.

The spelling of 12449287 in words is "twelve million, four hundred forty-nine thousand, two hundred eighty-seven".