86734859 has 2 divisors, whose sum is σ = 86734860. Its totient is φ = 86734858.

The previous prime is 86734849. The next prime is 86734873. The reversal of 86734859 is 95843768.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86734859 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (86734849) 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, 43367429 + 43367430.

It is an arithmetic number, because the mean of its divisors is an integer number (43367430).

Almost surely, 2^86734859 is an apocalyptic number.

86734859 is a deficient number, since it is larger than the sum of its proper divisors (1).

86734859 is an equidigital number, since it uses as much as digits as its factorization.

86734859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The square root of 86734859 is about 9313.1551581620. The cubic root of 86734859 is about 442.6541690986.

The spelling of 86734859 in words is "eighty-six million, seven hundred thirty-four thousand, eight hundred fifty-nine".