623656223 has 8 divisors (see below), whose sum is σ = 646070880. Its totient is φ = 601302240.

The previous prime is 623656211. The next prime is 623656279. The reversal of 623656223 is 322656326.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 623656223 - 2¹⁰ = 623655199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623656283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6293 + ... + 35873.

It is an arithmetic number, because the mean of its divisors is an integer number (80758860).

Almost surely, 2^623656223 is an apocalyptic number.

623656223 is a deficient number, since it is larger than the sum of its proper divisors (22414657).

623656223 is a wasteful number, since it uses less digits than its factorization.

623656223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30337.

The product of its digits is 77760, while the sum is 35.

The square root of 623656223 is about 24973.1099985564. The cubic root of 623656223 is about 854.3747799714.

The spelling of 623656223 in words is "six hundred twenty-three million, six hundred fifty-six thousand, two hundred twenty-three".