65064773 has 4 divisors (see below), whose sum is σ = 65110188. Its totient is φ = 65019360.

The previous prime is 65064757. The next prime is 65064799. The reversal of 65064773 is 37746056.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12545764 + 52519009 = 3542^2 + 7247^2 .

It is a cyclic number.

It is not a de Polignac number, because 65064773 - 2⁴ = 65064757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65064733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20486 + ... + 23447.

It is an arithmetic number, because the mean of its divisors is an integer number (16277547).

Almost surely, 2^65064773 is an apocalyptic number.

It is an amenable number.

65064773 is a deficient number, since it is larger than the sum of its proper divisors (45415).

65064773 is a wasteful number, since it uses less digits than its factorization.

65064773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45414.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 65064773 is about 8066.2737989731. The cubic root of 65064773 is about 402.2060876584.

The spelling of 65064773 in words is "sixty-five million, sixty-four thousand, seven hundred seventy-three".