485005639 has 2 divisors, whose sum is σ = 485005640. Its totient is φ = 485005638.

The previous prime is 485005627. The next prime is 485005663. The reversal of 485005639 is 936500584.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 485005639 - 2⁵ = 485005607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485005739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242502819 + 242502820.

It is an arithmetic number, because the mean of its divisors is an integer number (242502820).

Almost surely, 2^485005639 is an apocalyptic number.

485005639 is a deficient number, since it is larger than the sum of its proper divisors (1).

485005639 is an equidigital number, since it uses as much as digits as its factorization.

485005639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 485005639 is about 22022.8435720731. The cubic root of 485005639 is about 785.6858457663.

The spelling of 485005639 in words is "four hundred eighty-five million, five thousand, six hundred thirty-nine".