204550343 has 4 divisors (see below), whose sum is σ = 206111928. Its totient is φ = 202988760.

The previous prime is 204550337. The next prime is 204550349. The reversal of 204550343 is 343055402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343055402 = 2 ⋅171527701.

It is an interprime number because it is at equal distance from previous prime (204550337) and next prime (204550349).

It is a cyclic number.

It is not a de Polignac number, because 204550343 - 2⁴ = 204550327 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 (204550349) 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, 780596 + ... + 780857.

It is an arithmetic number, because the mean of its divisors is an integer number (51527982).

Almost surely, 2^204550343 is an apocalyptic number.

204550343 is a deficient number, since it is larger than the sum of its proper divisors (1561585).

204550343 is a wasteful number, since it uses less digits than its factorization.

204550343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561584.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 204550343 is about 14302.1097394755. The cubic root of 204550343 is about 589.2054256583.

The spelling of 204550343 in words is "two hundred four million, five hundred fifty thousand, three hundred forty-three".