8042885 has 4 divisors (see below), whose sum is σ = 9651468. Its totient is φ = 6434304.

The previous prime is 8042863. The next prime is 8042897. The reversal of 8042885 is 5882408.

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 3786916 + 4255969 = 1946^2 + 2063^2 .

It is a cyclic number.

It is not a de Polignac number, because 8042885 - 2¹⁰ = 8041861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804284 + ... + 804293.

It is an arithmetic number, because the mean of its divisors is an integer number (2412867).

Almost surely, 2^8042885 is an apocalyptic number.

It is an amenable number.

8042885 is a deficient number, since it is larger than the sum of its proper divisors (1608583).

8042885 is a wasteful number, since it uses less digits than its factorization.

8042885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608582.

The product of its (nonzero) digits is 20480, while the sum is 35.

The square root of 8042885 is about 2835.9980606481. The cubic root of 8042885 is about 200.3567383106.

The spelling of 8042885 in words is "eight million, forty-two thousand, eight hundred eighty-five".