279463 has 6 divisors (see below), whose sum is σ = 297176. Its totient is φ = 262752.

The previous prime is 279451. The next prime is 279479. The reversal of 279463 is 364972.

It is not a de Polignac number, because 279463 - 2⁵ = 279431 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹³ + 7³ + 4⁹ + 9⁴ + 6² + 3⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (279413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 195 + ... + 772.

279463 is a Friedman number, since it can be written as 23^4-9*7*6, using all its digits and the basic arithmetic operations.

2²⁷⁹⁴⁶³ is an apocalyptic number.

279463 is a deficient number, since it is larger than the sum of its proper divisors (17713).

279463 is an equidigital number, since it uses as much as digits as its factorization.

279463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001 (or 984 counting only the distinct ones).

The product of its digits is 9072, while the sum is 31.

The square root of 279463 is about 528.6426013859. The cubic root of 279463 is about 65.3794765192.

It can be divided in two parts, 27946 and 3, that multiplied together give a palindrome (83838).

The spelling of 279463 in words is "two hundred seventy-nine thousand, four hundred sixty-three".