200001823 has 8 divisors (see below), whose sum is σ = 231705248. Its totient is φ = 169081344.

The previous prime is 200001797. The next prime is 200001827. The reversal of 200001823 is 328100002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200001823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200001797 and 200001806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200001827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195186 + ... + 196207.

It is an arithmetic number, because the mean of its divisors is an integer number (28963156).

Almost surely, 2^200001823 is an apocalyptic number.

200001823 is a deficient number, since it is larger than the sum of its proper divisors (31703425).

200001823 is an equidigital number, since it uses as much as digits as its factorization.

200001823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391473.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 200001823 is about 14142.2000763672. The cubic root of 200001823 is about 584.8053244653.

Adding to 200001823 its reverse (328100002), we get a palindrome (528101825).

The spelling of 200001823 in words is "two hundred million, one thousand, eight hundred twenty-three".