6887740 has 24 divisors (see below), whose sum is σ = 14802480. Its totient is φ = 2690688.

The previous prime is 6887681. The next prime is 6887753. The reversal of 6887740 is 477886.

It is a junction number, because it is equal to n+sod(n) for n = 6887693 and 6887702.

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 7 ways as a sum of consecutive naturals, for example, 3145 + ... + 4864.

It is an arithmetic number, because the mean of its divisors is an integer number (616770).

Almost surely, 2^6887740 is an apocalyptic number.

It is an amenable number.

6887740 is an abundant number, since it is smaller than the sum of its proper divisors (7914740).

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

6887740 is a wasteful number, since it uses less digits than its factorization.

6887740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8061 (or 8059 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 6887740 is about 2624.4504186591. The cubic root of 6887740 is about 190.2650041725.

The spelling of 6887740 in words is "six million, eight hundred eighty-seven thousand, seven hundred forty".