8212306 has 4 divisors (see below), whose sum is σ = 12318462. Its totient is φ = 4106152.

The previous prime is 8212291. The next prime is 8212333. The reversal of 8212306 is 6032128.

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

It can be written as a sum of positive squares in only one way, i.e., 6456681 + 1755625 = 2541^2 + 1325^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2053075 + ... + 2053078.

Almost surely, 2^8212306 is an apocalyptic number.

8212306 is a deficient number, since it is larger than the sum of its proper divisors (4106156).

8212306 is a wasteful number, since it uses less digits than its factorization.

8212306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106155.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 8212306 is about 2865.7121279012. The cubic root of 8212306 is about 201.7537927688.

The spelling of 8212306 in words is "eight million, two hundred twelve thousand, three hundred six".