6404667 has 8 divisors (see below), whose sum is σ = 8583696. Its totient is φ = 4247712.

The previous prime is 6404659. The next prime is 6404669. The reversal of 6404667 is 7664046.

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

It is not a de Polignac number, because 6404667 - 2³ = 6404659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6404669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4828 + ... + 6009.

It is an arithmetic number, because the mean of its divisors is an integer number (1072962).

Almost surely, 2^6404667 is an apocalyptic number.

6404667 is a deficient number, since it is larger than the sum of its proper divisors (2179029).

6404667 is a wasteful number, since it uses less digits than its factorization.

6404667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11037.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 6404667 is about 2530.7443569037. The cubic root of 6404667 is about 185.7086721606.

The spelling of 6404667 in words is "six million, four hundred four thousand, six hundred sixty-seven".