263073 has 4 divisors (see below), whose sum is σ = 350768. Its totient is φ = 175380.

The previous prime is 263071. The next prime is 263077. The reversal of 263073 is 370362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 263073 - 2¹ = 263071 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263071) 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, 43843 + ... + 43848.

It is an arithmetic number, because the mean of its divisors is an integer number (87692).

2²⁶³⁰⁷³ is an apocalyptic number.

It is an amenable number.

263073 is a deficient number, since it is larger than the sum of its proper divisors (87695).

263073 is an equidigital number, since it uses as much as digits as its factorization.

263073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87694.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 263073 is about 512.9064242140. The cubic root of 263073 is about 64.0755130812.

The spelling of 263073 in words is "two hundred sixty-three thousand, seventy-three".