439279 has 2 divisors, whose sum is σ = 439280. Its totient is φ = 439278.

The previous prime is 439273. The next prime is 439289. The reversal of 439279 is 972934.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-439279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (439273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219639 + 219640.

It is an arithmetic number, because the mean of its divisors is an integer number (219640).

2⁴³⁹²⁷⁹ is an apocalyptic number.

439279 is a deficient number, since it is larger than the sum of its proper divisors (1).

439279 is an equidigital number, since it uses as much as digits as its factorization.

439279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 34.

The square root of 439279 is about 662.7812610507. The cubic root of 439279 is about 76.0174821279.

The spelling of 439279 in words is "four hundred thirty-nine thousand, two hundred seventy-nine".