506279 has 4 divisors (see below), whose sum is σ = 514920. Its totient is φ = 497640.

The previous prime is 506269. The next prime is 506281. The reversal of 506279 is 972605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 972605 = 5 ⋅194521.

It is a cyclic number.

It is not a de Polignac number, because 506279 - 2⁴ = 506263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4232 + ... + 4349.

It is an arithmetic number, because the mean of its divisors is an integer number (128730).

2⁵⁰⁶²⁷⁹ is an apocalyptic number.

506279 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

506279 is a deficient number, since it is larger than the sum of its proper divisors (8641).

506279 is an equidigital number, since it uses as much as digits as its factorization.

506279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8640.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 506279 is about 711.5328523687. The cubic root of 506279 is about 79.7009144917.

The spelling of 506279 in words is "five hundred six thousand, two hundred seventy-nine".