6985109 has 8 divisors (see below), whose sum is σ = 7099008. Its totient is φ = 6872400.

The previous prime is 6985081. The next prime is 6985133. The reversal of 6985109 is 9015896.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6985109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6985159) 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, 25079 + ... + 25355.

It is an arithmetic number, because the mean of its divisors is an integer number (887376).

Almost surely, 2^6985109 is an apocalyptic number.

It is an amenable number.

6985109 is a deficient number, since it is larger than the sum of its proper divisors (113899).

6985109 is a wasteful number, since it uses less digits than its factorization.

6985109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 6985109 is about 2642.9356783698. The cubic root of 6985109 is about 191.1573769389.

The spelling of 6985109 in words is "six million, nine hundred eighty-five thousand, one hundred nine".