65340517 has 4 divisors (see below), whose sum is σ = 71280576. Its totient is φ = 59400460.

The previous prime is 65340491. The next prime is 65340551. The reversal of 65340517 is 71504356.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65340517 - 2¹⁹ = 64816229 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65340817) 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, 2970013 + ... + 2970034.

It is an arithmetic number, because the mean of its divisors is an integer number (17820144).

Almost surely, 2^65340517 is an apocalyptic number.

It is an amenable number.

65340517 is a deficient number, since it is larger than the sum of its proper divisors (5940059).

65340517 is a wasteful number, since it uses less digits than its factorization.

65340517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5940058.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 65340517 is about 8083.3481305706. The cubic root of 65340517 is about 402.7734689790.

The spelling of 65340517 in words is "sixty-five million, three hundred forty thousand, five hundred seventeen".