65873 has 4 divisors (see below), whose sum is σ = 69360. Its totient is φ = 62388.

The previous prime is 65867. The next prime is 65881. The reversal of 65873 is 37856.

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 65873 - 2⁶ = 65809 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 65873.

It is not an unprimeable number, because it can be changed into a prime (65843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1715 + ... + 1752.

It is an arithmetic number, because the mean of its divisors is an integer number (17340).

2⁶⁵⁸⁷³ is an apocalyptic number.

It is an amenable number.

65873 is a deficient number, since it is larger than the sum of its proper divisors (3487).

65873 is a wasteful number, since it uses less digits than its factorization.

65873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3486.

The product of its digits is 5040, while the sum is 29.

The square root of 65873 is about 256.6573591386. The cubic root of 65873 is about 40.3864624773.

The spelling of 65873 in words is "sixty-five thousand, eight hundred seventy-three".