8223390 has 128 divisors (see below), whose sum is σ = 26496000. Its totient is φ = 1772928.

The previous prime is 8223367. The next prime is 8223407. The reversal of 8223390 is 933228.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35796 + ... + 36024.

It is an arithmetic number, because the mean of its divisors is an integer number (207000).

Almost surely, 2^8223390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8223390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13248000).

8223390 is an abundant number, since it is smaller than the sum of its proper divisors (18272610).

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

8223390 is a wasteful number, since it uses less digits than its factorization.

8223390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 8223390 is about 2867.6453755651. The cubic root of 8223390 is about 201.8445197714.

The spelling of 8223390 in words is "eight million, two hundred twenty-three thousand, three hundred ninety".