85617043 has 2 divisors, whose sum is σ = 85617044. Its totient is φ = 85617042.

The previous prime is 85617023. The next prime is 85617067. The reversal of 85617043 is 34071658.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85617043 - 2⁵ = 85617011 is a prime.

It is not a weakly prime, because it can be changed into another prime (85617023) 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, 42808521 + 42808522.

It is an arithmetic number, because the mean of its divisors is an integer number (42808522).

Almost surely, 2^85617043 is an apocalyptic number.

85617043 is a deficient number, since it is larger than the sum of its proper divisors (1).

85617043 is an equidigital number, since it uses as much as digits as its factorization.

85617043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 85617043 is about 9252.9478005660. The cubic root of 85617043 is about 440.7443375635.

The spelling of 85617043 in words is "eighty-five million, six hundred seventeen thousand, forty-three".