6789998 has 4 divisors (see below), whose sum is σ = 10185000. Its totient is φ = 3394998.

The previous prime is 6789983. The next prime is 6790009. The reversal of 6789998 is 8999876.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×6789998² = 92208145680008, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1697498 + ... + 1697501.

It is an arithmetic number, because the mean of its divisors is an integer number (2546250).

Almost surely, 2^6789998 is an apocalyptic number.

6789998 is a deficient number, since it is larger than the sum of its proper divisors (3395002).

6789998 is a wasteful number, since it uses less digits than its factorization.

6789998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395001.

The product of its digits is 1959552, while the sum is 56.

The square root of 6789998 is about 2605.7624603943. The cubic root of 6789998 is about 189.3607138486.

The spelling of 6789998 in words is "six million, seven hundred eighty-nine thousand, nine hundred ninety-eight".