6478403 has 4 divisors (see below), whose sum is σ = 6535848. Its totient is φ = 6420960.

The previous prime is 6478379. The next prime is 6478421. The reversal of 6478403 is 3048746.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6478403 - 2¹⁰ = 6477379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6478403.

It is not an unprimeable number, because it can be changed into a prime (6478453) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28553 + ... + 28778.

It is an arithmetic number, because the mean of its divisors is an integer number (1633962).

Almost surely, 2^6478403 is an apocalyptic number.

6478403 is a deficient number, since it is larger than the sum of its proper divisors (57445).

6478403 is a wasteful number, since it uses less digits than its factorization.

6478403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57444.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 6478403 is about 2545.2707125176. The cubic root of 6478403 is about 186.4186335115.

The spelling of 6478403 in words is "six million, four hundred seventy-eight thousand, four hundred three".