8273220 has 48 divisors (see below), whose sum is σ = 24530688. Its totient is φ = 2076160.

The previous prime is 8273197. The next prime is 8273231. The reversal of 8273220 is 223728.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3036 + ... + 5075.

It is an arithmetic number, because the mean of its divisors is an integer number (511056).

Almost surely, 2^8273220 is an apocalyptic number.

It is an amenable number.

8273220 is an abundant number, since it is smaller than the sum of its proper divisors (16257468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8273220 is a wasteful number, since it uses less digits than its factorization.

8273220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8140 (or 8138 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 8273220 is about 2876.3205662791. The cubic root of 8273220 is about 202.2513943522.

Adding to 8273220 its reverse (223728), we get a palindrome (8496948).

The spelling of 8273220 in words is "eight million, two hundred seventy-three thousand, two hundred twenty".