201887 has 8 divisors (see below), whose sum is σ = 233472. Its totient is φ = 171000.

The previous prime is 201881. The next prime is 201889. The reversal of 201887 is 788102.

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 201887 - 2⁶ = 201823 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 (201881) 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, 962 + ... + 1152.

It is an arithmetic number, because the mean of its divisors is an integer number (29184).

2²⁰¹⁸⁸⁷ is an apocalyptic number.

201887 is a deficient number, since it is larger than the sum of its proper divisors (31585).

201887 is a wasteful number, since it uses less digits than its factorization.

201887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 201887 is about 449.3183726491. The cubic root of 201887 is about 58.6637000623.

Adding to 201887 its reverse (788102), we get a palindrome (989989).

The spelling of 201887 in words is "two hundred one thousand, eight hundred eighty-seven".