6491404 has 12 divisors (see below), whose sum is σ = 11377800. Its totient is φ = 3240608.

The previous prime is 6491377. The next prime is 6491411. The reversal of 6491404 is 4041946.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4392 + ... + 5680.

It is an arithmetic number, because the mean of its divisors is an integer number (948150).

Almost surely, 2^6491404 is an apocalyptic number.

It is an amenable number.

6491404 is a deficient number, since it is larger than the sum of its proper divisors (4886396).

6491404 is a wasteful number, since it uses less digits than its factorization.

6491404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552 (or 2550 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 6491404 is about 2547.8233847738. The cubic root of 6491404 is about 186.5432531745.

The spelling of 6491404 in words is "six million, four hundred ninety-one thousand, four hundred four".