273963 has 16 divisors (see below), whose sum is σ = 391680. Its totient is φ = 170016.

The previous prime is 273943. The next prime is 273967. The reversal of 273963 is 369372.

It is a happy number.

It is not a de Polignac number, because 273963 - 2⁶ = 273899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 273963.

It is not an unprimeable number, because it can be changed into a prime (273967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4056 + ... + 4122.

It is an arithmetic number, because the mean of its divisors is an integer number (24480).

2²⁷³⁹⁶³ is an apocalyptic number.

273963 is a deficient number, since it is larger than the sum of its proper divisors (117717).

273963 is a wasteful number, since it uses less digits than its factorization.

273963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146.

The product of its digits is 6804, while the sum is 30.

The square root of 273963 is about 523.4147495056. The cubic root of 273963 is about 64.9477291800.

The spelling of 273963 in words is "two hundred seventy-three thousand, nine hundred sixty-three".