200427 has 4 divisors (see below), whose sum is σ = 267240. Its totient is φ = 133616.

The previous prime is 200407. The next prime is 200437. The reversal of 200427 is 724002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200427 - 2⁶ = 200363 is a prime.

It is a D-number.

200427 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (200407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33402 + ... + 33407.

It is an arithmetic number, because the mean of its divisors is an integer number (66810).

2²⁰⁰⁴²⁷ is an apocalyptic number.

200427 is a deficient number, since it is larger than the sum of its proper divisors (66813).

200427 is an equidigital number, since it uses as much as digits as its factorization.

200427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66812.

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 200427 is about 447.6907414723. The cubic root of 200427 is about 58.5219437000.

Adding to 200427 its reverse (724002), we get a palindrome (924429).

The spelling of 200427 in words is "two hundred thousand, four hundred twenty-seven", and thus it is an iban number.