6404084 has 12 divisors (see below), whose sum is σ = 11333700. Its totient is φ = 3165888.

The previous prime is 6404063. The next prime is 6404089. The reversal of 6404084 is 4804046.

It can be written as a sum of positive squares in 2 ways, for example, as 3062500 + 3341584 = 1750^2 + 1828^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8639 + ... + 9350.

It is an arithmetic number, because the mean of its divisors is an integer number (944475).

Almost surely, 2^6404084 is an apocalyptic number.

It is an amenable number.

6404084 is a deficient number, since it is larger than the sum of its proper divisors (4929616).

6404084 is a wasteful number, since it uses less digits than its factorization.

6404084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18082 (or 18080 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 6404084 is about 2530.6291707795. The cubic root of 6404084 is about 185.7030371322.

The spelling of 6404084 in words is "six million, four hundred four thousand, eighty-four".