6887830 has 8 divisors (see below), whose sum is σ = 12398112. Its totient is φ = 2755128.

The previous prime is 6887821. The next prime is 6887831. The reversal of 6887830 is 387886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6887831) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 344382 + ... + 344401.

It is an arithmetic number, because the mean of its divisors is an integer number (1549764).

Almost surely, 2^6887830 is an apocalyptic number.

6887830 is a deficient number, since it is larger than the sum of its proper divisors (5510282).

6887830 is a wasteful number, since it uses less digits than its factorization.

6887830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688790.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 6887830 is about 2624.4675650501. The cubic root of 6887830 is about 190.2658328805.

The spelling of 6887830 in words is "six million, eight hundred eighty-seven thousand, eight hundred thirty".