6480278 has 16 divisors (see below), whose sum is σ = 11145120. Its totient is φ = 2768256.

The previous prime is 6480269. The next prime is 6480289. The reversal of 6480278 is 8720846.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5528 + ... + 6596.

It is an arithmetic number, because the mean of its divisors is an integer number (696570).

Almost surely, 2^6480278 is an apocalyptic number.

6480278 is a deficient number, since it is larger than the sum of its proper divisors (4664842).

6480278 is a wasteful number, since it uses less digits than its factorization.

6480278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 6480278 is about 2545.6390160429. The cubic root of 6480278 is about 186.4366164013.

The spelling of 6480278 in words is "six million, four hundred eighty thousand, two hundred seventy-eight".