8331681 has 8 divisors (see below), whose sum is σ = 11592000. Its totient is φ = 5312912.

The previous prime is 8331679. The next prime is 8331689. The reversal of 8331681 is 1861338.

8331681 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8331681 - 2¹ = 8331679 is a prime.

It is a super-2 number, since 2×8331681² = 138833816571522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8331689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60306 + ... + 60443.

It is an arithmetic number, because the mean of its divisors is an integer number (1449000).

Almost surely, 2^8331681 is an apocalyptic number.

It is an amenable number.

8331681 is a deficient number, since it is larger than the sum of its proper divisors (3260319).

8331681 is a wasteful number, since it uses less digits than its factorization.

8331681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120775.

The product of its digits is 3456, while the sum is 30.

The square root of 8331681 is about 2886.4651392317. The cubic root of 8331681 is about 202.7266658666.

The spelling of 8331681 in words is "eight million, three hundred thirty-one thousand, six hundred eighty-one".