8223572 has 18 divisors (see below), whose sum is σ = 16741242. Its totient is φ = 3524304.

The previous prime is 8223569. The next prime is 8223577. The reversal of 8223572 is 2753228.

It can be written as a sum of positive squares in only one way, i.e., 7150276 + 1073296 = 2674^2 + 1036^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8223577) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20783 + ... + 21174.

It is an arithmetic number, because the mean of its divisors is an integer number (930069).

Almost surely, 2^8223572 is an apocalyptic number.

It is an amenable number.

8223572 is an abundant number, since it is smaller than the sum of its proper divisors (8517670).

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

8223572 is a wasteful number, since it uses less digits than its factorization.

8223572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41975 (or 41966 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 8223572 is about 2867.6771087415. The cubic root of 8223572 is about 201.8460088341.

The spelling of 8223572 in words is "eight million, two hundred twenty-three thousand, five hundred seventy-two".