204830623 has 4 divisors (see below), whose sum is σ = 205198920. Its totient is φ = 204462328.

The previous prime is 204830611. The next prime is 204830651. The reversal of 204830623 is 326038402.

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 204830623 - 2²⁵ = 171276191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204830591 and 204830600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204830723) 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, 183313 + ... + 184426.

It is an arithmetic number, because the mean of its divisors is an integer number (51299730).

Almost surely, 2^204830623 is an apocalyptic number.

204830623 is a deficient number, since it is larger than the sum of its proper divisors (368297).

204830623 is an equidigital number, since it uses as much as digits as its factorization.

204830623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368296.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 204830623 is about 14311.9049395949. The cubic root of 204830623 is about 589.4744175101.

The spelling of 204830623 in words is "two hundred four million, eight hundred thirty thousand, six hundred twenty-three".