42873 has 8 divisors (see below), whose sum is σ = 59136. Its totient is φ = 27600.

The previous prime is 42863. The next prime is 42899. The reversal of 42873 is 37824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42873 - 2⁵ = 42841 is a prime.

42873 is a lucky number.

It is a plaindrome in base 13.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (42853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138 + ... + 323.

It is an arithmetic number, because the mean of its divisors is an integer number (7392).

2⁴²⁸⁷³ is an apocalyptic number.

It is an amenable number.

42873 is a deficient number, since it is larger than the sum of its proper divisors (16263).

42873 is a wasteful number, since it uses less digits than its factorization.

42873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495.

The product of its digits is 1344, while the sum is 24.

The square root of 42873 is about 207.0579628993. The cubic root of 42873 is about 34.9994557739. Note that the first 3 decimals are identical.

Subtracting from 42873 its sum of digits (24), we obtain a square (42849 = 207²).

The spelling of 42873 in words is "forty-two thousand, eight hundred seventy-three".