6979988 has 12 divisors (see below), whose sum is σ = 12243840. Its totient is φ = 3481752.

The previous prime is 6979967. The next prime is 6980021. The reversal of 6979988 is 8899796.

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, 95 + ... + 3737.

It is an arithmetic number, because the mean of its divisors is an integer number (1020320).

Almost surely, 2^6979988 is an apocalyptic number.

It is an amenable number.

6979988 is a deficient number, since it is larger than the sum of its proper divisors (5263852).

6979988 is a wasteful number, since it uses less digits than its factorization.

6979988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126 (or 4124 counting only the distinct ones).

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

The square root of 6979988 is about 2641.9666916901. The cubic root of 6979988 is about 191.1106510515.

The spelling of 6979988 in words is "six million, nine hundred seventy-nine thousand, nine hundred eighty-eight".