6889091 has 8 divisors (see below), whose sum is σ = 7546368. Its totient is φ = 6237000.

The previous prime is 6889087. The next prime is 6889133. The reversal of 6889091 is 1909886.

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

It is not a de Polignac number, because 6889091 - 2² = 6889087 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6889031) 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 7 ways as a sum of consecutive naturals, for example, 1826 + ... + 4136.

It is an arithmetic number, because the mean of its divisors is an integer number (943296).

Almost surely, 2^6889091 is an apocalyptic number.

6889091 is a deficient number, since it is larger than the sum of its proper divisors (657277).

6889091 is a wasteful number, since it uses less digits than its factorization.

6889091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2593.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 6889091 is about 2624.7077932600. The cubic root of 6889091 is about 190.2774432413.

It can be divided in two parts, 688 and 9091, that added together give a palindrome (9779).

The spelling of 6889091 in words is "six million, eight hundred eighty-nine thousand, ninety-one".