273863 has 4 divisors (see below), whose sum is σ = 276000. Its totient is φ = 271728.

The previous prime is 273857. The next prime is 273881. The reversal of 273863 is 368372.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 273863 - 2¹⁸ = 11719 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273803) 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, 863 + ... + 1136.

It is an arithmetic number, because the mean of its divisors is an integer number (69000).

2²⁷³⁸⁶³ is an apocalyptic number.

273863 is a deficient number, since it is larger than the sum of its proper divisors (2137).

273863 is a wasteful number, since it uses less digits than its factorization.

273863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136.

The product of its digits is 6048, while the sum is 29.

The square root of 273863 is about 523.3192142469. The cubic root of 273863 is about 64.9398259676.

The spelling of 273863 in words is "two hundred seventy-three thousand, eight hundred sixty-three".