8423985 has 8 divisors (see below), whose sum is σ = 13478400. Its totient is φ = 4492784.

The previous prime is 8423953. The next prime is 8423999. The reversal of 8423985 is 5893248.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 8423985 - 2⁵ = 8423953 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280785 + ... + 280814.

It is an arithmetic number, because the mean of its divisors is an integer number (1684800).

Almost surely, 2^8423985 is an apocalyptic number.

It is an amenable number.

8423985 is a deficient number, since it is larger than the sum of its proper divisors (5054415).

8423985 is a wasteful number, since it uses less digits than its factorization.

8423985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561607.

The product of its digits is 69120, while the sum is 39.

The square root of 8423985 is about 2902.4102053294. The cubic root of 8423985 is about 203.4725658111.

The spelling of 8423985 in words is "eight million, four hundred twenty-three thousand, nine hundred eighty-five".