65836013 has 4 divisors (see below), whose sum is σ = 65855040. Its totient is φ = 65816988.

The previous prime is 65835997. The next prime is 65836027. The reversal of 65836013 is 31063856.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65836013 - 2⁴ = 65835997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65836063) 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 3 ways as a sum of consecutive naturals, for example, 2693 + ... + 11786.

It is an arithmetic number, because the mean of its divisors is an integer number (16463760).

Almost surely, 2^65836013 is an apocalyptic number.

It is an amenable number.

65836013 is a deficient number, since it is larger than the sum of its proper divisors (19027).

65836013 is a wasteful number, since it uses less digits than its factorization.

65836013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19026.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 65836013 is about 8113.9394254579. The cubic root of 65836013 is about 403.7890220346.

Adding to 65836013 its reverse (31063856), we get a palindrome (96899869).

The spelling of 65836013 in words is "sixty-five million, eight hundred thirty-six thousand, thirteen".