623406323 has 4 divisors (see below), whose sum is σ = 623781960. Its totient is φ = 623030688.

The previous prime is 623406319. The next prime is 623406347. The reversal of 623406323 is 323604326.

623406323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 623406323 - 2² = 623406319 is a prime.

It is a super-3 number, since 3×623406323³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623406313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185318 + ... + 188651.

It is an arithmetic number, because the mean of its divisors is an integer number (155945490).

Almost surely, 2^623406323 is an apocalyptic number.

623406323 is a deficient number, since it is larger than the sum of its proper divisors (375637).

623406323 is a wasteful number, since it uses less digits than its factorization.

623406323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375636.

The product of its (nonzero) digits is 15552, while the sum is 29.

The square root of 623406323 is about 24968.1061156028. The cubic root of 623406323 is about 854.2606482998.

The spelling of 623406323 in words is "six hundred twenty-three million, four hundred six thousand, three hundred twenty-three".