8487681 has 16 divisors (see below), whose sum is σ = 11673600. Its totient is φ = 5483088.

The previous prime is 8487671. The next prime is 8487701. The reversal of 8487681 is 1867848.

It is not a de Polignac number, because 8487681 - 2⁵ = 8487649 is a prime.

It is a super-2 number, since 2×8487681² = 144081457515522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8487631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13680 + ... + 14286.

It is an arithmetic number, because the mean of its divisors is an integer number (729600).

Almost surely, 2^8487681 is an apocalyptic number.

It is an amenable number.

8487681 is a deficient number, since it is larger than the sum of its proper divisors (3185919).

8487681 is a wasteful number, since it uses less digits than its factorization.

8487681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748.

The product of its digits is 86016, while the sum is 42.

The square root of 8487681 is about 2913.3624903194. The cubic root of 8487681 is about 203.9841154491.

The spelling of 8487681 in words is "eight million, four hundred eighty-seven thousand, six hundred eighty-one".