263379 has 4 divisors (see below), whose sum is σ = 351176. Its totient is φ = 175584.

The previous prime is 263369. The next prime is 263383. The reversal of 263379 is 973362.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 263379 - 2¹⁵ = 230611 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263369) 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 in 3 ways as a sum of consecutive naturals, for example, 43894 + ... + 43899.

It is an arithmetic number, because the mean of its divisors is an integer number (87794).

2²⁶³³⁷⁹ is an apocalyptic number.

263379 is a deficient number, since it is larger than the sum of its proper divisors (87797).

263379 is an equidigital number, since it uses as much as digits as its factorization.

263379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87796.

The product of its digits is 6804, while the sum is 30.

The square root of 263379 is about 513.2046375472. The cubic root of 263379 is about 64.1003471384.

The spelling of 263379 in words is "two hundred sixty-three thousand, three hundred seventy-nine".