263814 has 8 divisors (see below), whose sum is σ = 527640. Its totient is φ = 87936.

The previous prime is 263803. The next prime is 263819. The reversal of 263814 is 418362.

It is a happy number.

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

263814 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 21979 + ... + 21990.

It is an arithmetic number, because the mean of its divisors is an integer number (65955).

2²⁶³⁸¹⁴ is an apocalyptic number.

263814 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.

263814 is a wasteful number, since it uses less digits than its factorization.

263814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43974.

The product of its digits is 1152, while the sum is 24.

The square root of 263814 is about 513.6282702500. The cubic root of 263814 is about 64.1356173688.

The spelling of 263814 in words is "two hundred sixty-three thousand, eight hundred fourteen".