8231947 has 2 divisors, whose sum is σ = 8231948. Its totient is φ = 8231946.

The previous prime is 8231933. The next prime is 8232001. The reversal of 8231947 is 7491328.

8231947 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8231947 - 2¹⁵ = 8199179 is a prime.

8231947 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8231917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4115973 + 4115974.

It is an arithmetic number, because the mean of its divisors is an integer number (4115974).

Almost surely, 2^8231947 is an apocalyptic number.

8231947 is a deficient number, since it is larger than the sum of its proper divisors (1).

8231947 is an equidigital number, since it uses as much as digits as its factorization.

8231947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 8231947 is about 2869.1369782567. The cubic root of 8231947 is about 201.9145065132.

The spelling of 8231947 in words is "eight million, two hundred thirty-one thousand, nine hundred forty-seven".