872287 has 8 divisors (see below), whose sum is σ = 994896. Its totient is φ = 757632.

The previous prime is 872281. The next prime is 872317. The reversal of 872287 is 782278.

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 872287 - 2⁷ = 872159 is a prime.

It is a super-2 number, since 2×872287² = 1521769220738, which contains 22 as substring.

It is a Duffinian number.

872287 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1753 + ... + 2194.

It is an arithmetic number, because the mean of its divisors is an integer number (124362).

2⁸⁷²²⁸⁷ is an apocalyptic number.

872287 is a deficient number, since it is larger than the sum of its proper divisors (122609).

872287 is a wasteful number, since it uses less digits than its factorization.

872287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977.

The product of its digits is 12544, while the sum is 34.

The square root of 872287 is about 933.9630613681. The cubic root of 872287 is about 95.5476037992.

Subtracting from 872287 its reverse (782278), we obtain a palindrome (90009).

The spelling of 872287 in words is "eight hundred seventy-two thousand, two hundred eighty-seven".