8840231 has 2 divisors, whose sum is σ = 8840232. Its totient is φ = 8840230.

The previous prime is 8840213. The next prime is 8840243. The reversal of 8840231 is 1320488.

Together with previous prime (8840213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8840231 is a prime.

It is a super-2 number, since 2×8840231² = 156299368266722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8840231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8840201) 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 as a sum of consecutive naturals, namely, 4420115 + 4420116.

It is an arithmetic number, because the mean of its divisors is an integer number (4420116).

Almost surely, 2^8840231 is an apocalyptic number.

8840231 is a deficient number, since it is larger than the sum of its proper divisors (1).

8840231 is an equidigital number, since it uses as much as digits as its factorization.

8840231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 8840231 is about 2973.2525960638. The cubic root of 8840231 is about 206.7701635039.

The spelling of 8840231 in words is "eight million, eight hundred forty thousand, two hundred thirty-one".