887997 has 16 divisors (see below), whose sum is σ = 1313280. Its totient is φ = 529200.

The previous prime is 887989. The next prime is 888001. The reversal of 887997 is 799788.

It is not a de Polignac number, because 887997 - 2³ = 887989 is a prime.

It is an Ulam number.

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 887997.

It is not an unprimeable number, because it can be changed into a prime (887947) 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, 2154 + ... + 2532.

It is an arithmetic number, because the mean of its divisors is an integer number (82080).

2⁸⁸⁷⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

887997 is a deficient number, since it is larger than the sum of its proper divisors (425283).

887997 is a wasteful number, since it uses less digits than its factorization.

887997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464.

The product of its digits is 254016, while the sum is 48.

The square root of 887997 is about 942.3359273635. The cubic root of 887997 is about 96.1178024331.

Subtracting from 887997 its reverse (799788), we obtain a square (88209 = 297²).

The spelling of 887997 in words is "eight hundred eighty-seven thousand, nine hundred ninety-seven".