273816 has 24 divisors (see below), whose sum is σ = 741780. Its totient is φ = 91248.

The previous prime is 273803. The next prime is 273821. The reversal of 273816 is 618372.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 273816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1830 + ... + 1973.

2²⁷³⁸¹⁶ is an apocalyptic number.

It is an amenable number.

273816 is an abundant number, since it is smaller than the sum of its proper divisors (467964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

273816 is a wasteful number, since it uses less digits than its factorization.

273816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3815 (or 3808 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 273816 is about 523.2743066500. The cubic root of 273816 is about 64.9361107932.

It can be divided in two parts, 273 and 816, that added together give a square (1089 = 33²).

The spelling of 273816 in words is "two hundred seventy-three thousand, eight hundred sixteen".