6480865 has 8 divisors (see below), whose sum is σ = 7815168. Its totient is φ = 5159280.

The previous prime is 6480827. The next prime is 6480869. The reversal of 6480865 is 5680846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6480865 - 2²¹ = 4383713 is a prime.

It is a super-2 number, since 2×6480865² = 84003222296450, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6480869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2017 + ... + 4126.

It is an arithmetic number, because the mean of its divisors is an integer number (976896).

Almost surely, 2^6480865 is an apocalyptic number.

It is an amenable number.

6480865 is a deficient number, since it is larger than the sum of its proper divisors (1334303).

6480865 is a wasteful number, since it uses less digits than its factorization.

6480865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6359.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 6480865 is about 2545.7543086480. The cubic root of 6480865 is about 186.4422455317.

It can be divided in two parts, 648086 and 5, that added together give a triangular number (648091 = T₁₁₃₈).

The spelling of 6480865 in words is "six million, four hundred eighty thousand, eight hundred sixty-five".