8831 has 2 divisors, whose sum is σ = 8832. Its totient is φ = 8830.

The previous prime is 8821. The next prime is 8837. The reversal of 8831 is 1388.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8831 is a prime.

It is a super-2 number, since 2×8831² = 155973122, which contains 22 as substring.

It is a plaindrome in base 16.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4415 + 4416.

It is an arithmetic number, because the mean of its divisors is an integer number (4416).

2⁸⁸³¹ is an apocalyptic number.

8831 is a deficient number, since it is larger than the sum of its proper divisors (1).

8831 is an equidigital number, since it uses as much as digits as its factorization.

8831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 20.

The square root of 8831 is about 93.9734004918. The cubic root of 8831 is about 20.6698168397.

The spelling of 8831 in words is "eight thousand, eight hundred thirty-one".