263847 has 8 divisors (see below), whose sum is σ = 361456. Its totient is φ = 171072.

The previous prime is 263843. The next prime is 263849. The reversal of 263847 is 748362.

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

It is not a de Polignac number, because 263847 - 2² = 263843 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 263847.

It is not an unprimeable number, because it can be changed into a prime (263843) 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, 1078 + ... + 1299.

It is an arithmetic number, because the mean of its divisors is an integer number (45182).

2²⁶³⁸⁴⁷ is an apocalyptic number.

263847 is a deficient number, since it is larger than the sum of its proper divisors (97609).

263847 is a wasteful number, since it uses less digits than its factorization.

263847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417.

The product of its digits is 8064, while the sum is 30.

The square root of 263847 is about 513.6603936455. The cubic root of 263847 is about 64.1382914588.

The spelling of 263847 in words is "two hundred sixty-three thousand, eight hundred forty-seven".