279798 has 8 divisors (see below), whose sum is σ = 559608. Its totient is φ = 93264.

The previous prime is 279779. The next prime is 279817. The reversal of 279798 is 897972.

It is an interprime number because it is at equal distance from previous prime (279779) and next prime (279817).

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

279798 is an admirable number.

It is a Curzon number.

It is a nialpdrome in base 6.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 279798.

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, 23311 + ... + 23322.

It is an arithmetic number, because the mean of its divisors is an integer number (69951).

2²⁷⁹⁷⁹⁸ is an apocalyptic number.

279798 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

279798 is a wasteful number, since it uses less digits than its factorization.

279798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46638.

The product of its digits is 63504, while the sum is 42.

The square root of 279798 is about 528.9593557165. The cubic root of 279798 is about 65.4055901477.

It can be divided in two parts, 2 and 79798, that added together give a triangular number (79800 = T₃₉₉).

The spelling of 279798 in words is "two hundred seventy-nine thousand, seven hundred ninety-eight".