6851398 has 16 divisors (see below), whose sum is σ = 10579680. Its totient is φ = 3326400.

The previous prime is 6851347. The next prime is 6851407. The reversal of 6851398 is 8931586.

It is a happy number.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6851398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10543 + ... + 11173.

It is an arithmetic number, because the mean of its divisors is an integer number (661230).

Almost surely, 2^6851398 is an apocalyptic number.

6851398 is a deficient number, since it is larger than the sum of its proper divisors (3728282).

6851398 is a wasteful number, since it uses less digits than its factorization.

6851398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783.

The product of its digits is 51840, while the sum is 40.

The square root of 6851398 is about 2617.5175262068. The cubic root of 6851398 is about 189.9297801457.

The spelling of 6851398 in words is "six million, eight hundred fifty-one thousand, three hundred ninety-eight".