6891089 has 8 divisors (see below), whose sum is σ = 7011840. Its totient is φ = 6771600.

The previous prime is 6891077. The next prime is 6891107. The reversal of 6891089 is 9801986.

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

It is a cyclic number.

It is not a de Polignac number, because 6891089 - 2⁸ = 6890833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6891019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20654 + ... + 20984.

It is an arithmetic number, because the mean of its divisors is an integer number (876480).

Almost surely, 2^6891089 is an apocalyptic number.

It is an amenable number.

6891089 is a deficient number, since it is larger than the sum of its proper divisors (120751).

6891089 is a wasteful number, since it uses less digits than its factorization.

6891089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631.

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

The square root of 6891089 is about 2625.0883794646. The cubic root of 6891089 is about 190.2958364558.

The spelling of 6891089 in words is "six million, eight hundred ninety-one thousand, eighty-nine".