8481985 has 8 divisors (see below), whose sum is σ = 10216296. Its totient is φ = 6760320.

The previous prime is 8481983. The next prime is 8482021. The reversal of 8481985 is 5891848.

It can be written as a sum of positive squares in 4 ways, for example, as 512656 + 7969329 = 716^2 + 2823^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8481985 - 2¹ = 8481983 is a prime.

It is a Duffinian number.

8481985 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8481983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1614 + ... + 4423.

It is an arithmetic number, because the mean of its divisors is an integer number (1277037).

Almost surely, 2^8481985 is an apocalyptic number.

It is an amenable number.

8481985 is a deficient number, since it is larger than the sum of its proper divisors (1734311).

8481985 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (8481984) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (6323).

8481985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6323.

The product of its digits is 92160, while the sum is 43.

The square root of 8481985 is about 2912.3847616687. The cubic root of 8481985 is about 203.9384746539.

The spelling of 8481985 in words is "eight million, four hundred eighty-one thousand, nine hundred eighty-five".