279049 has 4 divisors (see below), whose sum is σ = 280836. Its totient is φ = 277264.

The previous prime is 279047. The next prime is 279073. The reversal of 279049 is 940972.

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

It can be written as a sum of positive squares in 2 ways, for example, as 219024 + 60025 = 468^2 + 245^2 .

It is a cyclic number.

It is not a de Polignac number, because 279049 - 2¹ = 279047 is a prime.

It is a d-powerful number, because it can be written as 2³ + 7⁵ + 0 + 9 + 4⁹ + 9² .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 279049.

It is not an unprimeable number, because it can be changed into a prime (279047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634 + ... + 979.

It is an arithmetic number, because the mean of its divisors is an integer number (70209).

2²⁷⁹⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

279049 is a deficient number, since it is larger than the sum of its proper divisors (1787).

279049 is a wasteful number, since it uses less digits than its factorization.

279049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 279049 is about 528.2508873632. The cubic root of 279049 is about 65.3471759044.

The spelling of 279049 in words is "two hundred seventy-nine thousand, forty-nine".