623226 has 16 divisors (see below), whose sum is σ = 1254528. Its totient is φ = 206400.

The previous prime is 623221. The next prime is 623261. The reversal of 623226 is 622326.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (623221) by changing a digit.

623226 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1231 + ... + 1661.

It is an arithmetic number, because the mean of its divisors is an integer number (78408).

2⁶²³²²⁶ is an apocalyptic number.

623226 is an abundant number, since it is smaller than the sum of its proper divisors (631302).

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

623226 is a wasteful number, since it uses less digits than its factorization.

623226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677.

The product of its digits is 864, while the sum is 21.

The square root of 623226 is about 789.4466416421. The cubic root of 623226 is about 85.4178274150.

Subtracting from 623226 its reverse (622326), we obtain a square (900 = 30²).

It can be divided in two parts, 6 and 23226, that added together give a palindrome (23232).

The spelling of 623226 in words is "six hundred twenty-three thousand, two hundred twenty-six".