65983013 has 2 divisors, whose sum is σ = 65983014. Its totient is φ = 65983012.

The previous prime is 65983009. The next prime is 65983079. The reversal of 65983013 is 31038956.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65966884 + 16129 = 8122^2 + 127^2 .

It is a cyclic number.

It is not a de Polignac number, because 65983013 - 2² = 65983009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65983213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32991506 + 32991507.

It is an arithmetic number, because the mean of its divisors is an integer number (32991507).

Almost surely, 2^65983013 is an apocalyptic number.

It is an amenable number.

65983013 is a deficient number, since it is larger than the sum of its proper divisors (1).

65983013 is an equidigital number, since it uses as much as digits as its factorization.

65983013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 65983013 is about 8122.9928597777. The cubic root of 65983013 is about 404.0893281053.

The spelling of 65983013 in words is "sixty-five million, nine hundred eighty-three thousand, thirteen".