279982 has 4 divisors (see below), whose sum is σ = 419976. Its totient is φ = 139990.

The previous prime is 279977. The next prime is 279991. The reversal of 279982 is 289972.

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

It is a plaindrome in base 16.

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, 69994 + ... + 69997.

It is an arithmetic number, because the mean of its divisors is an integer number (104994).

2²⁷⁹⁹⁸² is an apocalyptic number.

279982 is a deficient number, since it is larger than the sum of its proper divisors (139994).

279982 is a wasteful number, since it uses less digits than its factorization.

279982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139993.

The product of its digits is 18144, while the sum is 37.

The square root of 279982 is about 529.1332535383. The cubic root of 279982 is about 65.4199242882.

The spelling of 279982 in words is "two hundred seventy-nine thousand, nine hundred eighty-two".