881287 has 8 divisors (see below), whose sum is σ = 971280. Its totient is φ = 792960.

The previous prime is 881273. The next prime is 881311. The reversal of 881287 is 782188.

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

It is a cyclic number.

It is not a de Polignac number, because 881287 - 2⁷ = 881159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881207) 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 7 ways as a sum of consecutive naturals, for example, 889 + ... + 1597.

It is an arithmetic number, because the mean of its divisors is an integer number (121410).

2⁸⁸¹²⁸⁷ is an apocalyptic number.

881287 is a deficient number, since it is larger than the sum of its proper divisors (89993).

881287 is a wasteful number, since it uses less digits than its factorization.

881287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833.

The product of its digits is 7168, while the sum is 34.

The square root of 881287 is about 938.7688746438. The cubic root of 881287 is about 95.8750907291.

Subtracting from 881287 its reverse (782188), we obtain a palindrome (99099).

The spelling of 881287 in words is "eight hundred eighty-one thousand, two hundred eighty-seven".