65949 has 16 divisors (see below), whose sum is σ = 100800. Its totient is φ = 38016.

The previous prime is 65929. The next prime is 65951. The reversal of 65949 is 94956.

It is a happy number.

It is not a de Polignac number, because 65949 - 2⁹ = 65437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 697 + ... + 785.

It is an arithmetic number, because the mean of its divisors is an integer number (6300).

2⁶⁵⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

65949 is a deficient number, since it is larger than the sum of its proper divisors (34851).

65949 is a wasteful number, since it uses less digits than its factorization.

65949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124.

The product of its digits is 9720, while the sum is 33.

The square root of 65949 is about 256.8053737756. The cubic root of 65949 is about 40.4019882693.

The spelling of 65949 in words is "sixty-five thousand, nine hundred forty-nine".