8212585 has 4 divisors (see below), whose sum is σ = 9855108. Its totient is φ = 6570064.

The previous prime is 8212583. The next prime is 8212591. The reversal of 8212585 is 5852128.

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 1390041 + 6822544 = 1179^2 + 2612^2 .

It is a cyclic number.

It is not a de Polignac number, because 8212585 - 2¹ = 8212583 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8212583) 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, 821254 + ... + 821263.

It is an arithmetic number, because the mean of its divisors is an integer number (2463777).

Almost surely, 2^8212585 is an apocalyptic number.

It is an amenable number.

8212585 is a deficient number, since it is larger than the sum of its proper divisors (1642523).

8212585 is a wasteful number, since it uses less digits than its factorization.

8212585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642522.

The product of its digits is 6400, while the sum is 31.

The square root of 8212585 is about 2865.7608064875. The cubic root of 8212585 is about 201.7560774974.

The spelling of 8212585 in words is "eight million, two hundred twelve thousand, five hundred eighty-five".