86822 has 4 divisors (see below), whose sum is σ = 130236. Its totient is φ = 43410.

The previous prime is 86813. The next prime is 86837. The reversal of 86822 is 22868.

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

It is a junction number, because it is equal to n+sod(n) for n = 86791 and 86800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21704 + ... + 21707.

It is an arithmetic number, because the mean of its divisors is an integer number (32559).

2⁸⁶⁸²² is an apocalyptic number.

86822 is the 158-th centered heptagonal number.

86822 is a deficient number, since it is larger than the sum of its proper divisors (43414).

86822 is a wasteful number, since it uses less digits than its factorization.

86822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43413.

The product of its digits is 1536, while the sum is 26.

The square root of 86822 is about 294.6557313205. The cubic root of 86822 is about 44.2802361788.

The spelling of 86822 in words is "eighty-six thousand, eight hundred twenty-two".