6678398 has 8 divisors (see below), whose sum is σ = 10029960. Its totient is φ = 3335080.

The previous prime is 6678383. The next prime is 6678401. The reversal of 6678398 is 8938766.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713 + ... + 3723.

It is an arithmetic number, because the mean of its divisors is an integer number (1253745).

Almost surely, 2^6678398 is an apocalyptic number.

6678398 is a deficient number, since it is larger than the sum of its proper divisors (3351562).

6678398 is a wasteful number, since it uses less digits than its factorization.

6678398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4122.

The product of its digits is 435456, while the sum is 47.

The square root of 6678398 is about 2584.2596618761. The cubic root of 6678398 is about 188.3175371581.

The spelling of 6678398 in words is "six million, six hundred seventy-eight thousand, three hundred ninety-eight".