6679998 has 24 divisors (see below), whose sum is σ = 15587208. Its totient is φ = 2055312.

The previous prime is 6679993. The next prime is 6679999. The reversal of 6679998 is 8999766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6679993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14040 + ... + 14507.

It is an arithmetic number, because the mean of its divisors is an integer number (649467).

Almost surely, 2^6679998 is an apocalyptic number.

6679998 is an abundant number, since it is smaller than the sum of its proper divisors (8907210).

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

6679998 is a wasteful number, since it uses less digits than its factorization.

6679998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28568 (or 28565 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 6679998 is about 2584.5692097524. The cubic root of 6679998 is about 188.3325748962.

It can be divided in two parts, 667 and 9998, that multiplied together give a palindrome (6668666).

The spelling of 6679998 in words is "six million, six hundred seventy-nine thousand, nine hundred ninety-eight".