6517965 has 16 divisors (see below), whose sum is σ = 10460736. Its totient is φ = 3465600.

The previous prime is 6517963. The next prime is 6517981. The reversal of 6517965 is 5697156.

It is not a de Polignac number, because 6517965 - 2¹ = 6517963 is a prime.

6517965 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6517963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8185 + ... + 8945.

It is an arithmetic number, because the mean of its divisors is an integer number (653796).

Almost surely, 2^6517965 is an apocalyptic number.

It is an amenable number.

6517965 is a deficient number, since it is larger than the sum of its proper divisors (3942771).

6517965 is a wasteful number, since it uses less digits than its factorization.

6517965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340.

The product of its digits is 56700, while the sum is 39.

The square root of 6517965 is about 2553.0305521086. The cubic root of 6517965 is about 186.7973344600.

The spelling of 6517965 in words is "six million, five hundred seventeen thousand, nine hundred sixty-five".