263958 has 32 divisors (see below), whose sum is σ = 574560. Its totient is φ = 80640.

The previous prime is 263957. The next prime is 263983. The reversal of 263958 is 859362.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263951) 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 15 ways as a sum of consecutive naturals, for example, 6418 + ... + 6458.

It is an arithmetic number, because the mean of its divisors is an integer number (17955).

2²⁶³⁹⁵⁸ is an apocalyptic number.

263958 is an abundant number, since it is smaller than the sum of its proper divisors (310602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263958 is a wasteful number, since it uses less digits than its factorization.

263958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112.

The product of its digits is 12960, while the sum is 33.

The square root of 263958 is about 513.7684303263. The cubic root of 263958 is about 64.1472844891.

It can be divided in two parts, 263 and 958, that added together give a palindrome (1221).

The spelling of 263958 in words is "two hundred sixty-three thousand, nine hundred fifty-eight".