65918 has 8 divisors (see below), whose sum is σ = 103248. Its totient is φ = 31504.

The previous prime is 65899. The next prime is 65921. The reversal of 65918 is 81956.

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

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 65918.

It is an unprimeable number.

65918 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671 + ... + 762.

It is an arithmetic number, because the mean of its divisors is an integer number (12906).

2⁶⁵⁹¹⁸ is an apocalyptic number.

65918 is a deficient number, since it is larger than the sum of its proper divisors (37330).

65918 is a wasteful number, since it uses less digits than its factorization.

65918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458.

The product of its digits is 2160, while the sum is 29.

The square root of 65918 is about 256.7450096886. The cubic root of 65918 is about 40.3956568216.

The spelling of 65918 in words is "sixty-five thousand, nine hundred eighteen".