279948 has 24 divisors (see below), whose sum is σ = 670320. Its totient is φ = 90880.

The previous prime is 279941. The next prime is 279949. The reversal of 279948 is 849972.

It is a plaindrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 279948.

It is not an unprimeable number, because it can be changed into a prime (279941) by changing a digit.

279948 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208 + ... + 776.

It is an arithmetic number, because the mean of its divisors is an integer number (27930).

2²⁷⁹⁹⁴⁸ is an apocalyptic number.

It is an amenable number.

279948 is an abundant number, since it is smaller than the sum of its proper divisors (390372).

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

279948 is a wasteful number, since it uses less digits than its factorization.

279948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 615 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 279948 is about 529.1011245499. The cubic root of 279948 is about 65.4172760614.

The spelling of 279948 in words is "two hundred seventy-nine thousand, nine hundred forty-eight".