6486845 has 4 divisors (see below), whose sum is σ = 7784220. Its totient is φ = 5189472.

The previous prime is 6486841. The next prime is 6486869. The reversal of 6486845 is 5486846.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5486846 = 2 ⋅2743423.

It can be written as a sum of positive squares in 2 ways, for example, as 1708249 + 4778596 = 1307^2 + 2186^2 .

It is a cyclic number.

It is not a de Polignac number, because 6486845 - 2² = 6486841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6486841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648680 + ... + 648689.

It is an arithmetic number, because the mean of its divisors is an integer number (1946055).

Almost surely, 2^6486845 is an apocalyptic number.

It is an amenable number.

6486845 is a deficient number, since it is larger than the sum of its proper divisors (1297375).

6486845 is a wasteful number, since it uses less digits than its factorization.

6486845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297374.

The product of its digits is 184320, while the sum is 41.

The square root of 6486845 is about 2546.9285423820. The cubic root of 6486845 is about 186.4995723384.

Subtracting from 6486845 its reverse (5486846), we obtain a palindrome (999999).

The spelling of 6486845 in words is "six million, four hundred eighty-six thousand, eight hundred forty-five".