64007065 has 4 divisors (see below), whose sum is σ = 76808484. Its totient is φ = 51205648.

The previous prime is 64007051. The next prime is 64007081. The reversal of 64007065 is 56070046.

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 46063369 + 17943696 = 6787^2 + 4236^2 .

It is a cyclic number.

It is not a de Polignac number, because 64007065 - 2¹³ = 63998873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6400702 + ... + 6400711.

It is an arithmetic number, because the mean of its divisors is an integer number (19202121).

Almost surely, 2^64007065 is an apocalyptic number.

It is an amenable number.

64007065 is a deficient number, since it is larger than the sum of its proper divisors (12801419).

64007065 is a wasteful number, since it uses less digits than its factorization.

64007065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12801418.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 64007065 is about 8000.4415503146. The cubic root of 64007065 is about 400.0147182084.

The spelling of 64007065 in words is "sixty-four million, seven thousand, sixty-five".