263673 has 6 divisors (see below), whose sum is σ = 380874. Its totient is φ = 175776.

The previous prime is 263657. The next prime is 263677. The reversal of 263673 is 376362.

It can be written as a sum of positive squares in only one way, i.e., 242064 + 21609 = 492^2 + 147^2 .

It is not a de Polignac number, because 263673 - 2⁴ = 263657 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (263677) 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, 14640 + ... + 14657.

It is an arithmetic number, because the mean of its divisors is an integer number (63479).

2²⁶³⁶⁷³ is an apocalyptic number.

It is an amenable number.

263673 is a deficient number, since it is larger than the sum of its proper divisors (117201).

263673 is a wasteful number, since it uses less digits than its factorization.

263673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29303 (or 29300 counting only the distinct ones).

The product of its digits is 4536, while the sum is 27.

The square root of 263673 is about 513.4909931050. The cubic root of 263673 is about 64.1241891990.

The spelling of 263673 in words is "two hundred sixty-three thousand, six hundred seventy-three".