8223512 has 64 divisors (see below), whose sum is σ = 18662400. Its totient is φ = 3351040.

The previous prime is 8223499. The next prime is 8223541. The reversal of 8223512 is 2153228.

It is a super-2 number, since 2×8223512² = 135252299228288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34289 + ... + 34527.

It is an arithmetic number, because the mean of its divisors is an integer number (291600).

Almost surely, 2^8223512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8223512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9331200).

8223512 is an abundant number, since it is smaller than the sum of its proper divisors (10438888).

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

8223512 is a wasteful number, since it uses less digits than its factorization.

8223512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 292 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 8223512 is about 2867.6666472936. Note that the first 4 decimals coincide. The cubic root of 8223512 is about 201.8455179368.

It can be divided in two parts, 822 and 3512, that added together give a palindrome (4334).

The spelling of 8223512 in words is "eight million, two hundred twenty-three thousand, five hundred twelve".