263879 has 16 divisors (see below), whose sum is σ = 345600. Its totient is φ = 195360.

The previous prime is 263869. The next prime is 263881. The reversal of 263879 is 978362.

It is not a de Polignac number, because 263879 - 2⁴ = 263863 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 (263819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1697 + ... + 1845.

It is an arithmetic number, because the mean of its divisors is an integer number (21600).

2²⁶³⁸⁷⁹ is an apocalyptic number.

263879 is a deficient number, since it is larger than the sum of its proper divisors (81721).

263879 is a wasteful number, since it uses less digits than its factorization.

263879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190.

The product of its digits is 18144, while the sum is 35.

The square root of 263879 is about 513.6915416863. The cubic root of 263879 is about 64.1408843028.

The spelling of 263879 in words is "two hundred sixty-three thousand, eight hundred seventy-nine".