6886390 has 16 divisors (see below), whose sum is σ = 14166432. Its totient is φ = 2361024.

The previous prime is 6886387. The next prime is 6886423. The reversal of 6886390 is 936886.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49119 + ... + 49258.

It is an arithmetic number, because the mean of its divisors is an integer number (885402).

Almost surely, 2^6886390 is an apocalyptic number.

6886390 is an abundant number, since it is smaller than the sum of its proper divisors (7280042).

6886390 is a wasteful number, since it uses less digits than its factorization.

6886390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98391.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 6886390 is about 2624.1932093503. The cubic root of 6886390 is about 190.2525726861.

The spelling of 6886390 in words is "six million, eight hundred eighty-six thousand, three hundred ninety".