887638 has 8 divisors (see below), whose sum is σ = 1409832. Its totient is φ = 417696.

The previous prime is 887633. The next prime is 887641. The reversal of 887638 is 836788.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 887638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (887633) 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 3 ways as a sum of consecutive naturals, for example, 13020 + ... + 13087.

It is an arithmetic number, because the mean of its divisors is an integer number (176229).

2⁸⁸⁷⁶³⁸ is an apocalyptic number.

887638 is a deficient number, since it is larger than the sum of its proper divisors (522194).

887638 is a wasteful number, since it uses less digits than its factorization.

887638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26126.

The product of its digits is 64512, while the sum is 40.

The square root of 887638 is about 942.1454240190. The cubic root of 887638 is about 96.1048478314.

The spelling of 887638 in words is "eight hundred eighty-seven thousand, six hundred thirty-eight".