822887 has 4 divisors (see below), whose sum is σ = 886200. Its totient is φ = 759576.

The previous prime is 822883. The next prime is 822889. The reversal of 822887 is 788228.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 822887 - 2² = 822883 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 (822881) 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, 31637 + ... + 31662.

It is an arithmetic number, because the mean of its divisors is an integer number (221550).

2⁸²²⁸⁸⁷ is an apocalyptic number.

822887 is a deficient number, since it is larger than the sum of its proper divisors (63313).

822887 is a wasteful number, since it uses less digits than its factorization.

822887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63312.

The product of its digits is 14336, while the sum is 35.

The square root of 822887 is about 907.1311922760. The cubic root of 822887 is about 93.7087332453.

The spelling of 822887 in words is "eight hundred twenty-two thousand, eight hundred eighty-seven".