6986988 has 18 divisors (see below), whose sum is σ = 17661644. Its totient is φ = 2328984.

The previous prime is 6986981. The next prime is 6987031. The reversal of 6986988 is 8896896.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (6986981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97006 + ... + 97077.

Almost surely, 2^6986988 is an apocalyptic number.

It is an amenable number.

6986988 is an abundant number, since it is smaller than the sum of its proper divisors (10674656).

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

6986988 is a wasteful number, since it uses less digits than its factorization.

6986988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194093 (or 194088 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 6986988 is about 2643.2911303903. The cubic root of 6986988 is about 191.1745158988.

The spelling of 6986988 in words is "six million, nine hundred eighty-six thousand, nine hundred eighty-eight".