65992 has 16 divisors (see below), whose sum is σ = 126540. Its totient is φ = 32256.

The previous prime is 65983. The next prime is 65993. The reversal of 65992 is 29956.

It can be written as a sum of positive squares in 2 ways, for example, as 60516 + 5476 = 246^2 + 74^2 .

It is not an unprimeable number, because it can be changed into a prime (65993) 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, 528 + ... + 640.

2⁶⁵⁹⁹² is an apocalyptic number.

It is an amenable number.

65992 is a deficient number, since it is larger than the sum of its proper divisors (60548).

65992 is a wasteful number, since it uses less digits than its factorization.

65992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 188 counting only the distinct ones).

The product of its digits is 4860, while the sum is 31.

The square root of 65992 is about 256.8890811226. The cubic root of 65992 is about 40.4107673160.

The spelling of 65992 in words is "sixty-five thousand, nine hundred ninety-two".