623212326 has 64 divisors (see below), whose sum is σ = 1522540800. Its totient is φ = 187387200.

The previous prime is 623212309. The next prime is 623212351.

623212326 is a `hidden beast` number, since 623 + 2 + 1 + 2 + 32 + 6 = 666.

623212326 is nontrivially palindromic in base 10.

623212326 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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

It is a self number, because there is not a number n which added to its sum of digits gives 623212326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73810 + ... + 81818.

It is an arithmetic number, because the mean of its divisors is an integer number (23789700).

Almost surely, 2^623212326 is an apocalyptic number.

623212326 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 623212326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (761270400).

623212326 is an abundant number, since it is smaller than the sum of its proper divisors (899328474).

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

623212326 is a wasteful number, since it uses less digits than its factorization.

623212326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8162 (or 8156 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 623212326 is about 24964.2209171446. The cubic root of 623212326 is about 854.1720270212.

The spelling of 623212326 in words is "six hundred twenty-three million, two hundred twelve thousand, three hundred twenty-six".