86983943 has 2 divisors, whose sum is σ = 86983944. Its totient is φ = 86983942.

The previous prime is 86983921. The next prime is 86983961. The reversal of 86983943 is 34938968.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86983943 - 2⁶ = 86983879 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 86983891 and 86983900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86983243) 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, 43491971 + 43491972.

It is an arithmetic number, because the mean of its divisors is an integer number (43491972).

Almost surely, 2^86983943 is an apocalyptic number.

86983943 is a deficient number, since it is larger than the sum of its proper divisors (1).

86983943 is an equidigital number, since it uses as much as digits as its factorization.

86983943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 50.

The square root of 86983943 is about 9326.5182678211. The cubic root of 86983943 is about 443.0775002118.

The spelling of 86983943 in words is "eighty-six million, nine hundred eighty-three thousand, nine hundred forty-three".