6897109 has 8 divisors (see below), whose sum is σ = 7083648. Its totient is φ = 6712320.

The previous prime is 6897103. The next prime is 6897119. The reversal of 6897109 is 9017986.

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 6897109 - 2³ = 6897101 is a prime.

It is a super-2 number, since 2×6897109² = 95140225115762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6897101) 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, 11794 + ... + 12364.

It is an arithmetic number, because the mean of its divisors is an integer number (885456).

Almost surely, 2^6897109 is an apocalyptic number.

It is an amenable number.

6897109 is a deficient number, since it is larger than the sum of its proper divisors (186539).

6897109 is a wasteful number, since it uses less digits than its factorization.

6897109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 6897109 is about 2626.2347572142. The cubic root of 6897109 is about 190.3512339654.

The spelling of 6897109 in words is "six million, eight hundred ninety-seven thousand, one hundred nine".