6404871 has 8 divisors (see below), whose sum is σ = 9316224. Its totient is φ = 3881720.

The previous prime is 6404837. The next prime is 6404873. The reversal of 6404871 is 1784046.

6404871 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6404871 - 2⁷ = 6404743 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97011 + ... + 97076.

It is an arithmetic number, because the mean of its divisors is an integer number (1164528).

Almost surely, 2^6404871 is an apocalyptic number.

6404871 is a deficient number, since it is larger than the sum of its proper divisors (2911353).

6404871 is a wasteful number, since it uses less digits than its factorization.

6404871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194101.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 6404871 is about 2530.7846609303. The cubic root of 6404871 is about 185.7106438565.

The spelling of 6404871 in words is "six million, four hundred four thousand, eight hundred seventy-one".