273993 has 4 divisors (see below), whose sum is σ = 365328. Its totient is φ = 182660.

The previous prime is 273979. The next prime is 273997. The reversal of 273993 is 399372.

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 273993 - 2⁶ = 273929 is a prime.

It is a D-number.

It is a plaindrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 273993.

It is not an unprimeable number, because it can be changed into a prime (273997) 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, 45663 + ... + 45668.

It is an arithmetic number, because the mean of its divisors is an integer number (91332).

2²⁷³⁹⁹³ is an apocalyptic number.

It is an amenable number.

273993 is a deficient number, since it is larger than the sum of its proper divisors (91335).

273993 is an equidigital number, since it uses as much as digits as its factorization.

273993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91334.

The product of its digits is 10206, while the sum is 33.

The square root of 273993 is about 523.4434066831. The cubic root of 273993 is about 64.9500997687.

The spelling of 273993 in words is "two hundred seventy-three thousand, nine hundred ninety-three".