65920833 has 24 divisors (see below), whose sum is σ = 104176800. Its totient is φ = 39836160.

The previous prime is 65920819. The next prime is 65920843. The reversal of 65920833 is 33802956.

It is not a de Polignac number, because 65920833 - 2⁵ = 65920801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65920843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43710 + ... + 45192.

It is an arithmetic number, because the mean of its divisors is an integer number (4340700).

Almost surely, 2^65920833 is an apocalyptic number.

It is an amenable number.

65920833 is a deficient number, since it is larger than the sum of its proper divisors (38255967).

65920833 is a wasteful number, since it uses less digits than its factorization.

65920833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949 (or 1946 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 65920833 is about 8119.1645506173. The cubic root of 65920833 is about 403.9623551663.

The spelling of 65920833 in words is "sixty-five million, nine hundred twenty thousand, eight hundred thirty-three".