200427821 has 8 divisors (see below), whose sum is σ = 222774624. Its totient is φ = 178768720.

The previous prime is 200427811. The next prime is 200427823. The reversal of 200427821 is 128724002.

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

It is a cyclic number.

It is not a de Polignac number, because 200427821 - 2⁶ = 200427757 is a prime.

It is a super-2 number, since 2×200427821² = 80342622861616082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200427823) 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, 171311 + ... + 172476.

It is an arithmetic number, because the mean of its divisors is an integer number (27846828).

Almost surely, 2^200427821 is an apocalyptic number.

It is an amenable number.

200427821 is a deficient number, since it is larger than the sum of its proper divisors (22346803).

200427821 is a wasteful number, since it uses less digits than its factorization.

200427821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343851.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 200427821 is about 14157.2532999873. The cubic root of 200427821 is about 585.2202360678.

The spelling of 200427821 in words is "two hundred million, four hundred twenty-seven thousand, eight hundred twenty-one".