820886 has 8 divisors (see below), whose sum is σ = 1343304. Its totient is φ = 373120.

The previous prime is 820873. The next prime is 820891. The reversal of 820886 is 688028.

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

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18635 + ... + 18678.

It is an arithmetic number, because the mean of its divisors is an integer number (167913).

2⁸²⁰⁸⁸⁶ is an apocalyptic number.

820886 is a deficient number, since it is larger than the sum of its proper divisors (522418).

820886 is a wasteful number, since it uses less digits than its factorization.

820886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37326.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 820886 is about 906.0275933988. The cubic root of 820886 is about 93.6327149625.

It can be divided in two parts, 82088 and 6, that multiplied together give a triangular number (492528 = T₉₉₂).

The spelling of 820886 in words is "eight hundred twenty thousand, eight hundred eighty-six".