8442485 has 4 divisors (see below), whose sum is σ = 10130988. Its totient is φ = 6753984.

The previous prime is 8442481. The next prime is 8442521. The reversal of 8442485 is 5842448.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4289041 + 4153444 = 2071^2 + 2038^2 .

It is a cyclic number.

It is not a de Polignac number, because 8442485 - 2² = 8442481 is a prime.

It is a d-powerful number, because it can be written as 8³ + 4³ + 4⁵ + 2²³ + 4⁷ + 8⁵ + 5⁵ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8442481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 844244 + ... + 844253.

It is an arithmetic number, because the mean of its divisors is an integer number (2532747).

Almost surely, 2^8442485 is an apocalyptic number.

It is an amenable number.

8442485 is a deficient number, since it is larger than the sum of its proper divisors (1688503).

8442485 is a wasteful number, since it uses less digits than its factorization.

8442485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688502.

The product of its digits is 40960, while the sum is 35.

The square root of 8442485 is about 2905.5954639282. The cubic root of 8442485 is about 203.6214063049.

The spelling of 8442485 in words is "eight million, four hundred forty-two thousand, four hundred eighty-five".