8587485989 has 2 divisors, whose sum is σ = 8587485990. Its totient is φ = 8587485988.

The previous prime is 8587485953. The next prime is 8587486027. The reversal of 8587485989 is 9895847858.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7232141764 + 1355344225 = 85042^2 + 36815^2 .

It is a cyclic number.

It is not a de Polignac number, because 8587485989 - 2¹² = 8587481893 is a prime.

It is a super-2 number, since 2×8587485989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8587482989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4293742994 + 4293742995.

It is an arithmetic number, because the mean of its divisors is an integer number (4293742995).

Almost surely, 2^8587485989 is an apocalyptic number.

It is an amenable number.

8587485989 is a deficient number, since it is larger than the sum of its proper divisors (1).

8587485989 is an equidigital number, since it uses as much as digits as its factorization.

8587485989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 232243200, while the sum is 71.

The square root of 8587485989 is about 92668.6893670133. The cubic root of 8587485989 is about 2047.8053840241.

It can be divided in two parts, 858 and 7485989, that added together give a palindrome (7486847).

The spelling of 8587485989 in words is "eight billion, five hundred eighty-seven million, four hundred eighty-five thousand, nine hundred eighty-nine".