65017793 has 4 divisors (see below), whose sum is σ = 65748420. Its totient is φ = 64287168.

The previous prime is 65017783. The next prime is 65017807. The reversal of 65017793 is 39771056.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4986289 + 60031504 = 2233^2 + 7748^2 .

It is a cyclic number.

It is not a de Polignac number, because 65017793 - 2¹⁰ = 65016769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65017723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365180 + ... + 365357.

It is an arithmetic number, because the mean of its divisors is an integer number (16437105).

Almost surely, 2^65017793 is an apocalyptic number.

It is an amenable number.

65017793 is a deficient number, since it is larger than the sum of its proper divisors (730627).

65017793 is an equidigital number, since it uses as much as digits as its factorization.

65017793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730626.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 65017793 is about 8063.3611478093. The cubic root of 65017793 is about 402.1092600879.

The spelling of 65017793 in words is "sixty-five million, seventeen thousand, seven hundred ninety-three".