6817998 has 32 divisors (see below), whose sum is σ = 15661440. Its totient is φ = 1956960.

The previous prime is 6817991. The next prime is 6817999. The reversal of 6817998 is 8997186.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6817991) 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, 1465 + ... + 3972.

It is an arithmetic number, because the mean of its divisors is an integer number (489420).

Almost surely, 2^6817998 is an apocalyptic number.

6817998 is an abundant number, since it is smaller than the sum of its proper divisors (8843442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6817998 is a wasteful number, since it uses less digits than its factorization.

6817998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5472.

The product of its digits is 217728, while the sum is 48.

The square root of 6817998 is about 2611.1296405962. The cubic root of 6817998 is about 189.6206465970.

The spelling of 6817998 in words is "six million, eight hundred seventeen thousand, nine hundred ninety-eight".