887640 has 64 divisors (see below), whose sum is σ = 2872800. Its totient is φ = 218112.

The previous prime is 887633. The next prime is 887641. The reversal of 887640 is 46788.

887640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 10.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 887640.

It is not an unprimeable number, because it can be changed into a prime (887641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1276 + ... + 1844.

2⁸⁸⁷⁶⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 887640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1436400).

887640 is an abundant number, since it is smaller than the sum of its proper divisors (1985160).

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

887640 is a wasteful number, since it uses less digits than its factorization.

887640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 887640 is about 942.1464854257. The cubic root of 887640 is about 96.1049200116.

The spelling of 887640 in words is "eight hundred eighty-seven thousand, six hundred forty".