263956 has 24 divisors (see below), whose sum is σ = 576576. Its totient is φ = 102720.

The previous prime is 263953. The next prime is 263957. The reversal of 263956 is 659362.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 15.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121 + ... + 736.

It is an arithmetic number, because the mean of its divisors is an integer number (24024).

2²⁶³⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

263956 is an abundant number, since it is smaller than the sum of its proper divisors (312620).

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

263956 is a wasteful number, since it uses less digits than its factorization.

263956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879 (or 877 counting only the distinct ones).

The product of its digits is 9720, while the sum is 31.

The square root of 263956 is about 513.7664839205. The cubic root of 263956 is about 64.1471224749.

The spelling of 263956 in words is "two hundred sixty-three thousand, nine hundred fifty-six".