8481665 has 4 divisors (see below), whose sum is σ = 10178004. Its totient is φ = 6785328.

The previous prime is 8481661. The next prime is 8481673. The reversal of 8481665 is 5661848.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3301489 + 5180176 = 1817^2 + 2276^2 .

It is a cyclic number.

It is not a de Polignac number, because 8481665 - 2² = 8481661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8481661) 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, 848162 + ... + 848171.

It is an arithmetic number, because the mean of its divisors is an integer number (2544501).

Almost surely, 2^8481665 is an apocalyptic number.

It is an amenable number.

8481665 is a deficient number, since it is larger than the sum of its proper divisors (1696339).

8481665 is a wasteful number, since it uses less digits than its factorization.

8481665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696338.

The product of its digits is 46080, while the sum is 38.

The square root of 8481665 is about 2912.3298233545. The cubic root of 8481665 is about 203.9359099581.

The spelling of 8481665 in words is "eight million, four hundred eighty-one thousand, six hundred sixty-five".