263799 has 6 divisors (see below), whose sum is σ = 381056. Its totient is φ = 175860.

The previous prime is 263761. The next prime is 263803. The reversal of 263799 is 997362.

It is not a de Polignac number, because 263799 - 2⁹ = 263287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14647 + ... + 14664.

2²⁶³⁷⁹⁹ is an apocalyptic number.

263799 is a deficient number, since it is larger than the sum of its proper divisors (117257).

263799 is a wasteful number, since it uses less digits than its factorization.

263799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29317 (or 29314 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 263799 is about 513.6136680424. The cubic root of 263799 is about 64.1344017997.

The spelling of 263799 in words is "two hundred sixty-three thousand, seven hundred ninety-nine".