6395845 has 8 divisors (see below), whose sum is σ = 7731864. Its totient is φ = 5078784.

The previous prime is 6395839. The next prime is 6395861. The reversal of 6395845 is 5485936.

It can be written as a sum of positive squares in 4 ways, for example, as 2307361 + 4088484 = 1519^2 + 2022^2 .

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 6395845 - 2¹¹ = 6393797 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 6395798 and 6395807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3984 + ... + 5353.

It is an arithmetic number, because the mean of its divisors is an integer number (966483).

Almost surely, 2^6395845 is an apocalyptic number.

It is an amenable number.

6395845 is a deficient number, since it is larger than the sum of its proper divisors (1336019).

6395845 is a wasteful number, since it uses less digits than its factorization.

6395845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9479.

The product of its digits is 129600, while the sum is 40.

The square root of 6395845 is about 2529.0007908263. Note that the first 3 decimals coincide. The cubic root of 6395845 is about 185.6233658931.

Subtracting from 6395845 its reverse (5485936), we obtain a palindrome (909909).

The spelling of 6395845 in words is "six million, three hundred ninety-five thousand, eight hundred forty-five".