823982 has 4 divisors (see below), whose sum is σ = 1235976. Its totient is φ = 411990.

The previous prime is 823981. The next prime is 823993. The reversal of 823982 is 289328.

It is a happy number.

823982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205994 + ... + 205997.

It is an arithmetic number, because the mean of its divisors is an integer number (308994).

2⁸²³⁹⁸² is an apocalyptic number.

823982 is a deficient number, since it is larger than the sum of its proper divisors (411994).

823982 is a wasteful number, since it uses less digits than its factorization.

823982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411993.

The product of its digits is 6912, while the sum is 32.

The square root of 823982 is about 907.7345426941. The cubic root of 823982 is about 93.7502802955.

The spelling of 823982 in words is "eight hundred twenty-three thousand, nine hundred eighty-two".