65938 has 4 divisors (see below), whose sum is σ = 98910. Its totient is φ = 32968.

The previous prime is 65929. The next prime is 65951. The reversal of 65938 is 83956.

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

It can be written as a sum of positive squares in only one way, i.e., 59049 + 6889 = 243^2 + 83^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16483 + ... + 16486.

2⁶⁵⁹³⁸ is an apocalyptic number.

65938 is a deficient number, since it is larger than the sum of its proper divisors (32972).

65938 is a wasteful number, since it uses less digits than its factorization.

65938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32971.

The product of its digits is 6480, while the sum is 31.

The square root of 65938 is about 256.7839558851. The cubic root of 65938 is about 40.3997418537.

The spelling of 65938 in words is "sixty-five thousand, nine hundred thirty-eight".