86919043 has 2 divisors, whose sum is σ = 86919044. Its totient is φ = 86919042.

The previous prime is 86919023. The next prime is 86919059. The reversal of 86919043 is 34091968.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86919043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86918987 and 86919005.

It is not a weakly prime, because it can be changed into another prime (86919013) 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, 43459521 + 43459522.

It is an arithmetic number, because the mean of its divisors is an integer number (43459522).

Almost surely, 2^86919043 is an apocalyptic number.

86919043 is a deficient number, since it is larger than the sum of its proper divisors (1).

86919043 is an equidigital number, since it uses as much as digits as its factorization.

86919043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 86919043 is about 9323.0382923165. The cubic root of 86919043 is about 442.9672772464.

The spelling of 86919043 in words is "eighty-six million, nine hundred nineteen thousand, forty-three".