87168043 has 2 divisors, whose sum is σ = 87168044. Its totient is φ = 87168042.

The previous prime is 87168023. The next prime is 87168071. The reversal of 87168043 is 34086178.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87168043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87167993 and 87168011.

It is not a weakly prime, because it can be changed into another prime (87168023) 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, 43584021 + 43584022.

It is an arithmetic number, because the mean of its divisors is an integer number (43584022).

Almost surely, 2^87168043 is an apocalyptic number.

87168043 is a deficient number, since it is larger than the sum of its proper divisors (1).

87168043 is an equidigital number, since it uses as much as digits as its factorization.

87168043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 87168043 is about 9336.3827577922. The cubic root of 87168043 is about 443.3898685447.

The spelling of 87168043 in words is "eighty-seven million, one hundred sixty-eight thousand, forty-three".