64875773 has 2 divisors, whose sum is σ = 64875774. Its totient is φ = 64875772.

The previous prime is 64875761. The next prime is 64875779. The reversal of 64875773 is 37757846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64850809 + 24964 = 8053^2 + 158^2 .

It is a cyclic number.

It is not a de Polignac number, because 64875773 - 2¹⁸ = 64613629 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 14.

It is a zygodrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64875779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32437886 + 32437887.

It is an arithmetic number, because the mean of its divisors is an integer number (32437887).

Almost surely, 2^64875773 is an apocalyptic number.

It is an amenable number.

64875773 is a deficient number, since it is larger than the sum of its proper divisors (1).

64875773 is an equidigital number, since it uses as much as digits as its factorization.

64875773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 987840, while the sum is 47.

The square root of 64875773 is about 8054.5498322377. The cubic root of 64875773 is about 401.8162675316.

The spelling of 64875773 in words is "sixty-four million, eight hundred seventy-five thousand, seven hundred seventy-three".