204353423 has 4 divisors (see below), whose sum is σ = 204841560. Its totient is φ = 203865288.

The previous prime is 204353411. The next prime is 204353431. The reversal of 204353423 is 324353402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324353402 = 2 ⋅162176701.

It is not a de Polignac number, because 204353423 - 2¹⁶ = 204287887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204353392 and 204353401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204353473) 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, 243440 + ... + 244277.

It is an arithmetic number, because the mean of its divisors is an integer number (51210390).

Almost surely, 2^204353423 is an apocalyptic number.

204353423 is a deficient number, since it is larger than the sum of its proper divisors (488137).

204353423 is an equidigital number, since it uses as much as digits as its factorization.

204353423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488136.

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 204353423 is about 14295.2237827884. The cubic root of 204353423 is about 589.0162895214.

The spelling of 204353423 in words is "two hundred four million, three hundred fifty-three thousand, four hundred twenty-three".