887771 has 4 divisors (see below), whose sum is σ = 891192. Its totient is φ = 884352.

The previous prime is 887759. The next prime is 887819. The reversal of 887771 is 177788.

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 887771 - 2⁶ = 887707 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 887771.

It is not an unprimeable number, because it can be changed into a prime (887701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1286 + ... + 1851.

It is an arithmetic number, because the mean of its divisors is an integer number (222798).

2⁸⁸⁷⁷⁷¹ is an apocalyptic number.

887771 is a deficient number, since it is larger than the sum of its proper divisors (3421).

887771 is a wasteful number, since it uses less digits than its factorization.

887771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3420.

The product of its digits is 21952, while the sum is 38.

The square root of 887771 is about 942.2160049585. The cubic root of 887771 is about 96.1096475758.

The spelling of 887771 in words is "eight hundred eighty-seven thousand, seven hundred seventy-one".