84160859 has 2 divisors, whose sum is σ = 84160860. Its totient is φ = 84160858.

The previous prime is 84160849. The next prime is 84160889. The reversal of 84160859 is 95806148.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84160859 - 2²⁴ = 67383643 is a prime.

It is not a weakly prime, because it can be changed into another prime (84160849) 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, 42080429 + 42080430.

It is an arithmetic number, because the mean of its divisors is an integer number (42080430).

Almost surely, 2^84160859 is an apocalyptic number.

84160859 is a deficient number, since it is larger than the sum of its proper divisors (1).

84160859 is an equidigital number, since it uses as much as digits as its factorization.

84160859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 84160859 is about 9173.9227705491. The cubic root of 84160859 is about 438.2312932958.

The spelling of 84160859 in words is "eighty-four million, one hundred sixty thousand, eight hundred fifty-nine".