273973 has 4 divisors (see below), whose sum is σ = 313120. Its totient is φ = 234828.

The previous prime is 273971. The next prime is 273979. The reversal of 273973 is 379372.

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 a cyclic number.

It is not a de Polignac number, because 273973 - 2¹ = 273971 is a prime.

It is a super-2 number, since 2×273973² = 150122409458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273971) 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, 19563 + ... + 19576.

It is an arithmetic number, because the mean of its divisors is an integer number (78280).

2²⁷³⁹⁷³ is an apocalyptic number.

It is an amenable number.

273973 is a deficient number, since it is larger than the sum of its proper divisors (39147).

273973 is an equidigital number, since it uses as much as digits as its factorization.

273973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39146.

The product of its digits is 7938, while the sum is 31.

The square root of 273973 is about 523.4243020724. The cubic root of 273973 is about 64.9485193954.

The spelling of 273973 in words is "two hundred seventy-three thousand, nine hundred seventy-three".