6987144 has 32 divisors (see below), whose sum is σ = 18072000. Its totient is φ = 2248512.

The previous prime is 6987139. The next prime is 6987163. The reversal of 6987144 is 4417896.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 4324 + ... + 5715.

It is an arithmetic number, because the mean of its divisors is an integer number (564750).

Almost surely, 2^6987144 is an apocalyptic number.

It is an amenable number.

6987144 is an abundant number, since it is smaller than the sum of its proper divisors (11084856).

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

6987144 is a wasteful number, since it uses less digits than its factorization.

6987144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10077 (or 10073 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 6987144 is about 2643.3206388934. The cubic root of 6987144 is about 191.1759386865.

The spelling of 6987144 in words is "six million, nine hundred eighty-seven thousand, one hundred forty-four".