623686326 has 32 divisors (see below), whose sum is σ = 1270418688. Its totient is φ = 204068640.

The previous prime is 623686313. The next prime is 623686397.

623686326 is nontrivially palindromic in base 10.

623686326 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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, 213391 + ... + 216293.

It is an arithmetic number, because the mean of its divisors is an integer number (39700584).

Almost surely, 2^623686326 is an apocalyptic number.

623686326 is an abundant number, since it is smaller than the sum of its proper divisors (646732362).

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

623686326 is a wasteful number, since it uses less digits than its factorization.

623686326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3556.

The product of its digits is 373248, while the sum is 42.

The square root of 623686326 is about 24973.7126995567. The cubic root of 623686326 is about 854.3885262359.

The spelling of 623686326 in words is "six hundred twenty-three million, six hundred eighty-six thousand, three hundred twenty-six".