8322920 has 16 divisors (see below), whose sum is σ = 18726660. Its totient is φ = 3329152.

The previous prime is 8322917. The next prime is 8322929. The reversal of 8322920 is 292238.

It can be written as a sum of positive squares in 2 ways, for example, as 6770404 + 1552516 = 2602^2 + 1246^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8322920.

It is not an unprimeable number, because it can be changed into a prime (8322929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103997 + ... + 104076.

Almost surely, 2^8322920 is an apocalyptic number.

It is an amenable number.

8322920 is an abundant number, since it is smaller than the sum of its proper divisors (10403740).

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

8322920 is a wasteful number, since it uses less digits than its factorization.

8322920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208084 (or 208080 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 8322920 is about 2884.9471398970. The cubic root of 8322920 is about 202.6555833236.

The spelling of 8322920 in words is "eight million, three hundred twenty-two thousand, nine hundred twenty".