6671398 has 8 divisors (see below), whose sum is σ = 10055160. Its totient is φ = 3319680.

The previous prime is 6671389. The next prime is 6671411. The reversal of 6671398 is 8931766.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6671398.

It is a congruent number.

It is an unprimeable number.

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, 7483 + ... + 8326.

It is an arithmetic number, because the mean of its divisors is an integer number (1256895).

Almost surely, 2^6671398 is an apocalyptic number.

6671398 is a deficient number, since it is larger than the sum of its proper divisors (3383762).

6671398 is a wasteful number, since it uses less digits than its factorization.

6671398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16022.

The product of its digits is 54432, while the sum is 40.

The square root of 6671398 is about 2582.9049537294. The cubic root of 6671398 is about 188.2517187989.

The spelling of 6671398 in words is "six million, six hundred seventy-one thousand, three hundred ninety-eight".