87324143 has 2 divisors, whose sum is σ = 87324144. Its totient is φ = 87324142.

The previous prime is 87324131. The next prime is 87324161. The reversal of 87324143 is 34142378.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87324143 - 2⁶ = 87324079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87324113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43662071 + 43662072.

It is an arithmetic number, because the mean of its divisors is an integer number (43662072).

Almost surely, 2^87324143 is an apocalyptic number.

87324143 is a deficient number, since it is larger than the sum of its proper divisors (1).

87324143 is an equidigital number, since it uses as much as digits as its factorization.

87324143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 32.

The square root of 87324143 is about 9344.7387871465. The cubic root of 87324143 is about 443.6543840011.

The spelling of 87324143 in words is "eighty-seven million, three hundred twenty-four thousand, one hundred forty-three".