6404071 has 8 divisors (see below), whose sum is σ = 6670064. Its totient is φ = 6143040.

The previous prime is 6404063. The next prime is 6404089. The reversal of 6404071 is 1704046.

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 6404071 - 2³ = 6404063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404171) 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, 1516 + ... + 3886.

It is an arithmetic number, because the mean of its divisors is an integer number (833758).

Almost surely, 2^6404071 is an apocalyptic number.

6404071 is a deficient number, since it is larger than the sum of its proper divisors (265993).

6404071 is a wasteful number, since it uses less digits than its factorization.

6404071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 6404071 is about 2530.6266022470. The cubic root of 6404071 is about 185.7029114758.

The spelling of 6404071 in words is "six million, four hundred four thousand, seventy-one".