8390224 has 10 divisors (see below), whose sum is σ = 16256090. Its totient is φ = 4195104.

The previous prime is 8390219. The next prime is 8390227. The reversal of 8390224 is 4220938.

It can be written as a sum of positive squares in only one way, i.e., 6594624 + 1795600 = 2568^2 + 1340^2 .

It is a d-powerful number, because it can be written as 8³ + 3⁵ + 9³ + 0 + 2⁷ + 2²³ + 4 .

It is a junction number, because it is equal to n+sod(n) for n = 8390192 and 8390201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8390227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262179 + ... + 262210.

It is an arithmetic number, because the mean of its divisors is an integer number (1625609).

Almost surely, 2^8390224 is an apocalyptic number.

It is an amenable number.

8390224 is a deficient number, since it is larger than the sum of its proper divisors (7865866).

8390224 is a wasteful number, since it uses less digits than its factorization.

8390224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524397 (or 524391 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 8390224 is about 2896.5883380280. The cubic root of 8390224 is about 203.2003813000.

The spelling of 8390224 in words is "eight million, three hundred ninety thousand, two hundred twenty-four".