8210522 has 16 divisors (see below), whose sum is σ = 12739272. Its totient is φ = 3965760.

The previous prime is 8210519. The next prime is 8210533. The reversal of 8210522 is 2250128.

It can be written as a sum of positive squares in 4 ways, for example, as 3418801 + 4791721 = 1849^2 + 2189^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8210494 and 8210503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13088 + ... + 13700.

Almost surely, 2^8210522 is an apocalyptic number.

8210522 is a deficient number, since it is larger than the sum of its proper divisors (4528750).

8210522 is a wasteful number, since it uses less digits than its factorization.

8210522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 8210522 is about 2865.4008445591. The cubic root of 8210522 is about 201.7391823848.

The spelling of 8210522 in words is "eight million, two hundred ten thousand, five hundred twenty-two".