87143659 has 2 divisors, whose sum is σ = 87143660. Its totient is φ = 87143658.

The previous prime is 87143657. The next prime is 87143663. The reversal of 87143659 is 95634178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87143659 - 2¹ = 87143657 is a prime.

Together with 87143657, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (87143657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43571829 + 43571830.

It is an arithmetic number, because the mean of its divisors is an integer number (43571830).

Almost surely, 2^87143659 is an apocalyptic number.

87143659 is a deficient number, since it is larger than the sum of its proper divisors (1).

87143659 is an equidigital number, since it uses as much as digits as its factorization.

87143659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 87143659 is about 9335.0768073969. The cubic root of 87143659 is about 443.3485207202.

The spelling of 87143659 in words is "eighty-seven million, one hundred forty-three thousand, six hundred fifty-nine".