8222278 has 4 divisors (see below), whose sum is σ = 12333420. Its totient is φ = 4111138.

The previous prime is 8222257. The next prime is 8222303. The reversal of 8222278 is 8722228.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2055568 + ... + 2055571.

It is an arithmetic number, because the mean of its divisors is an integer number (3083355).

Almost surely, 2^8222278 is an apocalyptic number.

8222278 is a deficient number, since it is larger than the sum of its proper divisors (4111142).

8222278 is a wasteful number, since it uses less digits than its factorization.

8222278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4111141.

The product of its digits is 7168, while the sum is 31.

The square root of 8222278 is about 2867.4514817168. The cubic root of 8222278 is about 201.8354212843.

The spelling of 8222278 in words is "eight million, two hundred twenty-two thousand, two hundred seventy-eight".