8485639 has 2 divisors, whose sum is σ = 8485640. Its totient is φ = 8485638.

The previous prime is 8485619. The next prime is 8485667. The reversal of 8485639 is 9365848.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8485639 - 2⁷ = 8485511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8485595 and 8485604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8485619) 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, 4242819 + 4242820.

It is an arithmetic number, because the mean of its divisors is an integer number (4242820).

Almost surely, 2^8485639 is an apocalyptic number.

8485639 is a deficient number, since it is larger than the sum of its proper divisors (1).

8485639 is an equidigital number, since it uses as much as digits as its factorization.

8485639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 43.

The square root of 8485639 is about 2913.0120150799. The cubic root of 8485639 is about 203.9677557009.

The spelling of 8485639 in words is "eight million, four hundred eighty-five thousand, six hundred thirty-nine".