6987996 has 36 divisors (see below), whose sum is σ = 17745000. Its totient is φ = 2318688.

The previous prime is 6987983. The next prime is 6988039. The reversal of 6987996 is 6997896.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13755 + ... + 14253.

Almost surely, 2^6987996 is an apocalyptic number.

It is an amenable number.

6987996 is an abundant number, since it is smaller than the sum of its proper divisors (10757004).

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

6987996 is a wasteful number, since it uses less digits than its factorization.

6987996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898 (or 893 counting only the distinct ones).

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

The square root of 6987996 is about 2643.4817949061. The cubic root of 6987996 is about 191.1837089228.

The spelling of 6987996 in words is "six million, nine hundred eighty-seven thousand, nine hundred ninety-six".