8484859639 has 2 divisors, whose sum is σ = 8484859640. Its totient is φ = 8484859638.

The previous prime is 8484859637. The next prime is 8484859661. The reversal of 8484859639 is 9369584848.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8484859639 - 2¹ = 8484859637 is a prime.

Together with 8484859637, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8484859637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4242429819 + 4242429820.

It is an arithmetic number, because the mean of its divisors is an integer number (4242429820).

Almost surely, 2^8484859639 is an apocalyptic number.

8484859639 is a deficient number, since it is larger than the sum of its proper divisors (1).

8484859639 is an equidigital number, since it uses as much as digits as its factorization.

8484859639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 59719680, while the sum is 64.

The square root of 8484859639 is about 92113.2978402141. The cubic root of 8484859639 is about 2039.6151105697.

The spelling of 8484859639 in words is "eight billion, four hundred eighty-four million, eight hundred fifty-nine thousand, six hundred thirty-nine".