8285905 has 4 divisors (see below), whose sum is σ = 9943092. Its totient is φ = 6628720.

The previous prime is 8285903. The next prime is 8285933. The reversal of 8285905 is 5095828.

It is a happy number.

8285905 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3568321 + 4717584 = 1889^2 + 2172^2 .

It is not a de Polignac number, because 8285905 - 2¹ = 8285903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8285903) 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, 828586 + ... + 828595.

It is an arithmetic number, because the mean of its divisors is an integer number (2485773).

Almost surely, 2^8285905 is an apocalyptic number.

It is an amenable number.

8285905 is a deficient number, since it is larger than the sum of its proper divisors (1657187).

8285905 is a wasteful number, since it uses less digits than its factorization.

8285905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657186.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 8285905 is about 2878.5247957938. The cubic root of 8285905 is about 202.3547095802.

The spelling of 8285905 in words is "eight million, two hundred eighty-five thousand, nine hundred five".