8231881 has 8 divisors (see below), whose sum is σ = 9437760. Its totient is φ = 7033488.

The previous prime is 8231849. The next prime is 8231887. The reversal of 8231881 is 1881328.

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

It is not a de Polignac number, because 8231881 - 2⁵ = 8231849 is a prime.

It is a super-2 number, since 2×8231881² = 135527729596322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8231887) 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, 735 + ... + 4123.

It is an arithmetic number, because the mean of its divisors is an integer number (1179720).

Almost surely, 2^8231881 is an apocalyptic number.

It is an amenable number.

8231881 is a deficient number, since it is larger than the sum of its proper divisors (1205879).

8231881 is a wasteful number, since it uses less digits than its factorization.

8231881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743.

The product of its digits is 3072, while the sum is 31.

The square root of 8231881 is about 2869.1254765172. The cubic root of 8231881 is about 201.9139668922.

It can be divided in two parts, 823 and 1881, that added together give a square (2704 = 52²).

The spelling of 8231881 in words is "eight million, two hundred thirty-one thousand, eight hundred eighty-one".