204419623 has 4 divisors (see below), whose sum is σ = 204508000. Its totient is φ = 204331248.

The previous prime is 204419597. The next prime is 204419627. The reversal of 204419623 is 326914402.

It is a happy number.

204419623 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 a de Polignac number, because none of the positive numbers 2^k-204419623 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 (204419627) 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, 40623 + ... + 45376.

It is an arithmetic number, because the mean of its divisors is an integer number (51127000).

Almost surely, 2^204419623 is an apocalyptic number.

204419623 is a deficient number, since it is larger than the sum of its proper divisors (88377).

204419623 is an equidigital number, since it uses as much as digits as its factorization.

204419623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88376.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 204419623 is about 14297.5390539771. The cubic root of 204419623 is about 589.0798863169.

The spelling of 204419623 in words is "two hundred four million, four hundred nineteen thousand, six hundred twenty-three".