8205394 has 4 divisors (see below), whose sum is σ = 12308094. Its totient is φ = 4102696.

The previous prime is 8205391. The next prime is 8205403. The reversal of 8205394 is 4935028.

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., 6734025 + 1471369 = 2595^2 + 1213^2 .

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 not an unprimeable number, because it can be changed into a prime (8205391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2051347 + ... + 2051350.

Almost surely, 2^8205394 is an apocalyptic number.

8205394 is a deficient number, since it is larger than the sum of its proper divisors (4102700).

8205394 is a wasteful number, since it uses less digits than its factorization.

8205394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102699.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 8205394 is about 2864.5058910744. The cubic root of 8205394 is about 201.6971739321.

The spelling of 8205394 in words is "eight million, two hundred five thousand, three hundred ninety-four".