6405704 has 16 divisors (see below), whose sum is σ = 12041520. Its totient is φ = 3194640.

The previous prime is 6405703. The next prime is 6405727. The reversal of 6405704 is 4075046.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6405701) 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, 3419 + ... + 4949.

It is an arithmetic number, because the mean of its divisors is an integer number (752595).

Almost surely, 2^6405704 is an apocalyptic number.

It is an amenable number.

6405704 is a deficient number, since it is larger than the sum of its proper divisors (5635816).

6405704 is a wasteful number, since it uses less digits than its factorization.

6405704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060 (or 2056 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 6405704 is about 2530.9492290443. The cubic root of 6405704 is about 185.7186945135.

The spelling of 6405704 in words is "six million, four hundred five thousand, seven hundred four".