887777 has 16 divisors (see below), whose sum is σ = 1054080. Its totient is φ = 745360.

The previous prime is 887759. The next prime is 887819. The reversal of 887777 is 777788.

It is not a de Polignac number, because 887777 - 2¹⁴ = 871393 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (887707) 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 15 ways as a sum of consecutive naturals, for example, 30599 + ... + 30627.

It is an arithmetic number, because the mean of its divisors is an integer number (65880).

2⁸⁸⁷⁷⁷⁷ is an apocalyptic number.

It is an amenable number.

887777 is a deficient number, since it is larger than the sum of its proper divisors (166303).

887777 is a wasteful number, since it uses less digits than its factorization.

887777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 63 counting only the distinct ones).

The product of its digits is 153664, while the sum is 44.

The square root of 887777 is about 942.2191889364. The cubic root of 887777 is about 96.1098640943.

The spelling of 887777 in words is "eight hundred eighty-seven thousand, seven hundred seventy-seven".