65299973 has 2 divisors, whose sum is σ = 65299974. Its totient is φ = 65299972.

The previous prime is 65299957. The next prime is 65299999. The reversal of 65299973 is 37999256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64529089 + 770884 = 8033^2 + 878^2 .

It is a cyclic number.

It is not a de Polignac number, because 65299973 - 2⁴ = 65299957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65299373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32649986 + 32649987.

It is an arithmetic number, because the mean of its divisors is an integer number (32649987).

Almost surely, 2^65299973 is an apocalyptic number.

It is an amenable number.

65299973 is a deficient number, since it is larger than the sum of its proper divisors (1).

65299973 is an equidigital number, since it uses as much as digits as its factorization.

65299973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 918540, while the sum is 50.

The square root of 65299973 is about 8080.8398697165. The cubic root of 65299973 is about 402.6901443332.

The spelling of 65299973 in words is "sixty-five million, two hundred ninety-nine thousand, nine hundred seventy-three".