200543879 has 4 divisors (see below), whose sum is σ = 211098840. Its totient is φ = 189988920.

The previous prime is 200543857. The next prime is 200543881. The reversal of 200543879 is 978345002.

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-200543879 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 (200543809) 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, 5277452 + ... + 5277489.

It is an arithmetic number, because the mean of its divisors is an integer number (52774710).

Almost surely, 2^200543879 is an apocalyptic number.

200543879 is a deficient number, since it is larger than the sum of its proper divisors (10554961).

200543879 is a wasteful number, since it uses less digits than its factorization.

200543879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10554960.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 200543879 is about 14161.3515950985. The cubic root of 200543879 is about 585.3331717944. Note that the first 3 decimals are identical.

The spelling of 200543879 in words is "two hundred million, five hundred forty-three thousand, eight hundred seventy-nine".