6480813 has 8 divisors (see below), whose sum is σ = 8720800. Its totient is φ = 4280688.

The previous prime is 6480811. The next prime is 6480827. The reversal of 6480813 is 3180846.

It is a happy number.

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

It is not a de Polignac number, because 6480813 - 2¹ = 6480811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6480811) 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 7 ways as a sum of consecutive naturals, for example, 9583 + ... + 10236.

It is an arithmetic number, because the mean of its divisors is an integer number (1090100).

Almost surely, 2^6480813 is an apocalyptic number.

It is an amenable number.

6480813 is a deficient number, since it is larger than the sum of its proper divisors (2239987).

6480813 is a wasteful number, since it uses less digits than its factorization.

6480813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19931.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 6480813 is about 2545.7440955446. The cubic root of 6480813 is about 186.4417468831.

The spelling of 6480813 in words is "six million, four hundred eighty thousand, eight hundred thirteen".