8542681 has 16 divisors (see below), whose sum is σ = 10124928. Its totient is φ = 7056000.

The previous prime is 8542663. The next prime is 8542711. The reversal of 8542681 is 1862458.

It is not a de Polignac number, because 8542681 - 2⁷ = 8542553 is a prime.

It is a super-2 number, since 2×8542681² = 145954797335522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8542601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30261 + ... + 30541.

It is an arithmetic number, because the mean of its divisors is an integer number (632808).

Almost surely, 2^8542681 is an apocalyptic number.

It is an amenable number.

8542681 is a deficient number, since it is larger than the sum of its proper divisors (1582247).

8542681 is a wasteful number, since it uses less digits than its factorization.

8542681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432.

The product of its digits is 15360, while the sum is 34.

The square root of 8542681 is about 2922.7865129017. The cubic root of 8542681 is about 204.4237714626.

The spelling of 8542681 in words is "eight million, five hundred forty-two thousand, six hundred eighty-one".