65372773 has 2 divisors, whose sum is σ = 65372774. Its totient is φ = 65372772.

The previous prime is 65372743. The next prime is 65372779. The reversal of 65372773 is 37727356.

It is a happy number.

65372773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62758084 + 2614689 = 7922^2 + 1617^2 .

It is a cyclic number.

It is not a de Polignac number, because 65372773 - 2⁹ = 65372261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65372779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32686386 + 32686387.

It is an arithmetic number, because the mean of its divisors is an integer number (32686387).

Almost surely, 2^65372773 is an apocalyptic number.

It is an amenable number.

65372773 is a deficient number, since it is larger than the sum of its proper divisors (1).

65372773 is an equidigital number, since it uses as much as digits as its factorization.

65372773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 185220, while the sum is 40.

The square root of 65372773 is about 8085.3430972346. The cubic root of 65372773 is about 402.8397357934.

The spelling of 65372773 in words is "sixty-five million, three hundred seventy-two thousand, seven hundred seventy-three".