6404516 has 12 divisors (see below), whose sum is σ = 11254320. Its totient is φ = 3189000.

The previous prime is 6404477. The next prime is 6404521. The reversal of 6404516 is 6154046.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 2186 + ... + 4193.

It is an arithmetic number, because the mean of its divisors is an integer number (937860).

Almost surely, 2^6404516 is an apocalyptic number.

It is an amenable number.

6404516 is a deficient number, since it is larger than the sum of its proper divisors (4849804).

6404516 is a wasteful number, since it uses less digits than its factorization.

6404516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6634 (or 6632 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 6404516 is about 2530.7145236079. The cubic root of 6404516 is about 185.7072126920.

The spelling of 6404516 in words is "six million, four hundred four thousand, five hundred sixteen".