6987984 has 40 divisors (see below), whose sum is σ = 18168480. Its totient is φ = 2314368.

The previous prime is 6987983. The next prime is 6988039. The reversal of 6987984 is 4897896.

6987984 = T₆₀ + T₆₁ + ... + T₃₄₇.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6987983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9087 + ... + 9825.

It is an arithmetic number, because the mean of its divisors is an integer number (454212).

Almost surely, 2^6987984 is an apocalyptic number.

It is an amenable number.

6987984 is an abundant number, since it is smaller than the sum of its proper divisors (11180496).

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

6987984 is a wasteful number, since it uses less digits than its factorization.

6987984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947 (or 941 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 6987984 is about 2643.4795251713. The cubic root of 6987984 is about 191.1835994873.

The spelling of 6987984 in words is "six million, nine hundred eighty-seven thousand, nine hundred eighty-four".