279941 has 2 divisors, whose sum is σ = 279942. Its totient is φ = 279940.

The previous prime is 279919. The next prime is 279949. The reversal of 279941 is 149972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 279841 + 100 = 529^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 279941 - 2¹⁰ = 278917 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 279898 and 279907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (279949) by changing a digit.

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 as a sum of consecutive naturals, namely, 139970 + 139971.

It is an arithmetic number, because the mean of its divisors is an integer number (139971).

279941 is a Friedman number, since it can be written as 9-4+(9-2-1)^7, using all its digits and the basic arithmetic operations.

2²⁷⁹⁹⁴¹ is an apocalyptic number.

It is an amenable number.

279941 is a deficient number, since it is larger than the sum of its proper divisors (1).

279941 is an equidigital number, since it uses as much as digits as its factorization.

279941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 32.

The square root of 279941 is about 529.0945095160. The cubic root of 279941 is about 65.4167308116.

The spelling of 279941 in words is "two hundred seventy-nine thousand, nine hundred forty-one".