84071059 has 2 divisors, whose sum is σ = 84071060. Its totient is φ = 84071058.

The previous prime is 84071041. The next prime is 84071081. The reversal of 84071059 is 95017048.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84071059 - 2⁵ = 84071027 is a prime.

It is a super-2 number, since 2×84071059² = 14135885922762962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84071159) 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, 42035529 + 42035530.

It is an arithmetic number, because the mean of its divisors is an integer number (42035530).

Almost surely, 2^84071059 is an apocalyptic number.

84071059 is a deficient number, since it is larger than the sum of its proper divisors (1).

84071059 is an equidigital number, since it uses as much as digits as its factorization.

84071059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 84071059 is about 9169.0271566835. The cubic root of 84071059 is about 438.0753729326.

The spelling of 84071059 in words is "eighty-four million, seventy-one thousand, fifty-nine".