6404079 has 16 divisors (see below), whose sum is σ = 9515520. Its totient is φ = 3797760.

The previous prime is 6404063. The next prime is 6404089. The reversal of 6404079 is 9704046.

It is not a de Polignac number, because 6404079 - 2⁴ = 6404063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514 + ... + 3615.

It is an arithmetic number, because the mean of its divisors is an integer number (594720).

Almost surely, 2^6404079 is an apocalyptic number.

6404079 is a deficient number, since it is larger than the sum of its proper divisors (3111441).

6404079 is a wasteful number, since it uses less digits than its factorization.

6404079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 6404079 is about 2530.6281828827. The cubic root of 6404079 is about 185.7029888028.

The spelling of 6404079 in words is "six million, four hundred four thousand, seventy-nine".