887978 has 48 divisors (see below), whose sum is σ = 1809864. Its totient is φ = 322560.

The previous prime is 887947. The next prime is 887987. The reversal of 887978 is 879788.

887978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 499849 + 388129 = 707^2 + 623^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21638 + ... + 21678.

2⁸⁸⁷⁹⁷⁸ is an apocalyptic number.

887978 is an abundant number, since it is smaller than the sum of its proper divisors (921886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

887978 is a wasteful number, since it uses less digits than its factorization.

887978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 80 counting only the distinct ones).

The product of its digits is 225792, while the sum is 47.

The square root of 887978 is about 942.3258459790. The cubic root of 887978 is about 96.1171169010.

The spelling of 887978 in words is "eight hundred eighty-seven thousand, nine hundred seventy-eight".