263982 has 8 divisors (see below), whose sum is σ = 527976. Its totient is φ = 87992.

The previous prime is 263957. The next prime is 263983. The reversal of 263982 is 289362.

It is a sphenic number, since it is the product of 3 distinct primes.

263982 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263983) by changing a digit.

263982 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21993 + ... + 22004.

It is an arithmetic number, because the mean of its divisors is an integer number (65997).

2²⁶³⁹⁸² is an apocalyptic number.

263982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

263982 is a wasteful number, since it uses less digits than its factorization.

263982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44002.

The product of its digits is 5184, while the sum is 30.

The square root of 263982 is about 513.7917866218. The cubic root of 263982 is about 64.1492285966.

The spelling of 263982 in words is "two hundred sixty-three thousand, nine hundred eighty-two".