8854639 has 2 divisors, whose sum is σ = 8854640. Its totient is φ = 8854638.

The previous prime is 8854631. The next prime is 8854667. The reversal of 8854639 is 9364588.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8854639 - 2³ = 8854631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8854595 and 8854604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8854631) 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, 4427319 + 4427320.

It is an arithmetic number, because the mean of its divisors is an integer number (4427320).

Almost surely, 2^8854639 is an apocalyptic number.

8854639 is a deficient number, since it is larger than the sum of its proper divisors (1).

8854639 is an equidigital number, since it uses as much as digits as its factorization.

8854639 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 8854639 is about 2975.6745453762. The cubic root of 8854639 is about 206.8824353622.

The spelling of 8854639 in words is "eight million, eight hundred fifty-four thousand, six hundred thirty-nine".