8442349 has 2 divisors, whose sum is σ = 8442350. Its totient is φ = 8442348.

The previous prime is 8442337. The next prime is 8442359. The reversal of 8442349 is 9432448.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8369449 + 72900 = 2893^2 + 270^2 .

It is a cyclic number.

It is not a de Polignac number, because 8442349 - 2⁷ = 8442221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8442359) 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 as a sum of consecutive naturals, namely, 4221174 + 4221175.

It is an arithmetic number, because the mean of its divisors is an integer number (4221175).

Almost surely, 2^8442349 is an apocalyptic number.

It is an amenable number.

8442349 is a deficient number, since it is larger than the sum of its proper divisors (1).

8442349 is an equidigital number, since it uses as much as digits as its factorization.

8442349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 34.

The square root of 8442349 is about 2905.5720607137. The cubic root of 8442349 is about 203.6203129199.

Subtracting 8442349 from its reverse (9432448), we obtain a palindrome (990099).

The spelling of 8442349 in words is "eight million, four hundred forty-two thousand, three hundred forty-nine".