12416449 has 2 divisors, whose sum is σ = 12416450. Its totient is φ = 12416448.

The previous prime is 12416431. The next prime is 12416473. The reversal of 12416449 is 94461421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10284849 + 2131600 = 3207^2 + 1460^2 .

It is an emirp because it is prime and its reverse (94461421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12416449 - 2⁹ = 12415937 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12416449.

It is not a weakly prime, because it can be changed into another prime (12416429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6208224 + 6208225.

It is an arithmetic number, because the mean of its divisors is an integer number (6208225).

Almost surely, 2^12416449 is an apocalyptic number.

It is an amenable number.

12416449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12416449 is an equidigital number, since it uses as much as digits as its factorization.

12416449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 12416449 is about 3523.6981993355. The cubic root of 12416449 is about 231.5612061324.

The spelling of 12416449 in words is "twelve million, four hundred sixteen thousand, four hundred forty-nine".