8645481 has 16 divisors (see below), whose sum is σ = 13793920. Its totient is φ = 5320080.

The previous prime is 8645477. The next prime is 8645491. The reversal of 8645481 is 1845468.

8645481 is a `hidden beast` number, since 8 + 645 + 4 + 8 + 1 = 666.

It is not a de Polignac number, because 8645481 - 2² = 8645477 is a prime.

It is a super-2 number, since 2×8645481² = 149488683442722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8645431) 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 15 ways as a sum of consecutive naturals, for example, 11965 + ... + 12666.

It is an arithmetic number, because the mean of its divisors is an integer number (862120).

Almost surely, 2^8645481 is an apocalyptic number.

It is an amenable number.

8645481 is a deficient number, since it is larger than the sum of its proper divisors (5148439).

8645481 is a wasteful number, since it uses less digits than its factorization.

8645481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24653 (or 24647 counting only the distinct ones).

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

The square root of 8645481 is about 2940.3198805572. The cubic root of 8645481 is about 205.2404950688.

The spelling of 8645481 in words is "eight million, six hundred forty-five thousand, four hundred eighty-one".