8449913 has 2 divisors, whose sum is σ = 8449914. Its totient is φ = 8449912.

The previous prime is 8449907. The next prime is 8449943. The reversal of 8449913 is 3199448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7689529 + 760384 = 2773^2 + 872^2 .

It is a cyclic number.

It is not a de Polignac number, because 8449913 - 2¹⁸ = 8187769 is a prime.

It is not a weakly prime, because it can be changed into another prime (8449943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4224956 + 4224957.

It is an arithmetic number, because the mean of its divisors is an integer number (4224957).

Almost surely, 2^8449913 is an apocalyptic number.

It is an amenable number.

8449913 is a deficient number, since it is larger than the sum of its proper divisors (1).

8449913 is an equidigital number, since it uses as much as digits as its factorization.

8449913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 38.

The square root of 8449913 is about 2906.8734062563. The cubic root of 8449913 is about 203.6811065961.

The spelling of 8449913 in words is "eight million, four hundred forty-nine thousand, nine hundred thirteen".