6845389 has 8 divisors (see below), whose sum is σ = 7096320. Its totient is φ = 6596400.

The previous prime is 6845383. The next prime is 6845413. The reversal of 6845389 is 9835486.

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 6845389 - 2³ = 6845381 is a prime.

It is a super-2 number, since 2×6845389² = 93718701122642, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6⁵ + 8² + 4⁸ + 5⁸ + 3¹³ + 8⁴ + 9⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6845381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14052 + ... + 14530.

It is an arithmetic number, because the mean of its divisors is an integer number (887040).

Almost surely, 2^6845389 is an apocalyptic number.

It is an amenable number.

6845389 is a deficient number, since it is larger than the sum of its proper divisors (250931).

6845389 is a wasteful number, since it uses less digits than its factorization.

6845389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971.

The product of its digits is 207360, while the sum is 43.

The square root of 6845389 is about 2616.3694311010. The cubic root of 6845389 is about 189.8742381056.

The spelling of 6845389 in words is "six million, eight hundred forty-five thousand, three hundred eighty-nine".