64335773 has 2 divisors, whose sum is σ = 64335774. Its totient is φ = 64335772.

The previous prime is 64335763. The next prime is 64335779. The reversal of 64335773 is 37753346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63329764 + 1006009 = 7958^2 + 1003^2 .

It is a cyclic number.

It is not a de Polignac number, because 64335773 - 2⁶ = 64335709 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64335779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32167886 + 32167887.

It is an arithmetic number, because the mean of its divisors is an integer number (32167887).

Almost surely, 2^64335773 is an apocalyptic number.

It is an amenable number.

64335773 is a deficient number, since it is larger than the sum of its proper divisors (1).

64335773 is an equidigital number, since it uses as much as digits as its factorization.

64335773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 38.

The square root of 64335773 is about 8020.9583591987. The cubic root of 64335773 is about 400.6983072912.

The spelling of 64335773 in words is "sixty-four million, three hundred thirty-five thousand, seven hundred seventy-three".