6413818 has 4 divisors (see below), whose sum is σ = 9620730. Its totient is φ = 3206908.

The previous prime is 6413809. The next prime is 6413821. The reversal of 6413818 is 8183146.

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

It can be written as a sum of positive squares in only one way, i.e., 3396649 + 3017169 = 1843^2 + 1737^2 .

It is a super-2 number, since 2×6413818² = 82274122674248, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 6413818.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1603453 + ... + 1603456.

Almost surely, 2^6413818 is an apocalyptic number.

6413818 is a deficient number, since it is larger than the sum of its proper divisors (3206912).

6413818 is a wasteful number, since it uses less digits than its factorization.

6413818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3206911.

The product of its digits is 4608, while the sum is 31.

The square root of 6413818 is about 2532.5516776564. The cubic root of 6413818 is about 185.7970770338.

The spelling of 6413818 in words is "six million, four hundred thirteen thousand, eight hundred eighteen".