6889209 has 8 divisors (see below), whose sum is σ = 9197760. Its totient is φ = 4586736.

The previous prime is 6889193. The next prime is 6889217. The reversal of 6889209 is 9029886.

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

It is not a de Polignac number, because 6889209 - 2⁴ = 6889193 is a prime.

It is a super-2 number, since 2×6889209² = 94922401291362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6889219) 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, 3484 + ... + 5090.

It is an arithmetic number, because the mean of its divisors is an integer number (1149720).

Almost surely, 2^6889209 is an apocalyptic number.

It is an amenable number.

6889209 is a deficient number, since it is larger than the sum of its proper divisors (2308551).

6889209 is a wasteful number, since it uses less digits than its factorization.

6889209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 6889209 is about 2624.7302718565. The cubic root of 6889209 is about 190.2785296261.

The spelling of 6889209 in words is "six million, eight hundred eighty-nine thousand, two hundred nine".