8493439 has 2 divisors, whose sum is σ = 8493440. Its totient is φ = 8493438.

The previous prime is 8493431. The next prime is 8493449. The reversal of 8493439 is 9343948.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8493439 - 2³ = 8493431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8493431) 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, 4246719 + 4246720.

It is an arithmetic number, because the mean of its divisors is an integer number (4246720).

Almost surely, 2^8493439 is an apocalyptic number.

8493439 is a deficient number, since it is larger than the sum of its proper divisors (1).

8493439 is an equidigital number, since it uses as much as digits as its factorization.

8493439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 40.

The square root of 8493439 is about 2914.3505279908. The cubic root of 8493439 is about 204.0302322873.

The spelling of 8493439 in words is "eight million, four hundred ninety-three thousand, four hundred thirty-nine".