6481845 has 48 divisors (see below), whose sum is σ = 12270960. Its totient is φ = 3151872.

The previous prime is 6481843. The next prime is 6481861. The reversal of 6481845 is 5481846.

6481845 is a `hidden beast` number, since 648 + 1 + 8 + 4 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1855044 + 4626801 = 1362^2 + 2151^2 .

It is not a de Polignac number, because 6481845 - 2¹ = 6481843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6481841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28191 + ... + 28419.

It is an arithmetic number, because the mean of its divisors is an integer number (255645).

Almost surely, 2^6481845 is an apocalyptic number.

It is an amenable number.

6481845 is a deficient number, since it is larger than the sum of its proper divisors (5789115).

6481845 is a wasteful number, since it uses less digits than its factorization.

6481845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 291 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 6481845 is about 2545.9467787053. The cubic root of 6481845 is about 186.4516426411.

Subtracting from 6481845 its reverse (5481846), we obtain a palindrome (999999).

The spelling of 6481845 in words is "six million, four hundred eighty-one thousand, eight hundred forty-five".