85604059 has 2 divisors, whose sum is σ = 85604060. Its totient is φ = 85604058.

The previous prime is 85604041. The next prime is 85604081. The reversal of 85604059 is 95040658.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85604059 is a prime.

It is not a weakly prime, because it can be changed into another prime (85604089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42802029 + 42802030.

It is an arithmetic number, because the mean of its divisors is an integer number (42802030).

Almost surely, 2^85604059 is an apocalyptic number.

85604059 is a deficient number, since it is larger than the sum of its proper divisors (1).

85604059 is an equidigital number, since it uses as much as digits as its factorization.

85604059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 85604059 is about 9252.2461597171. The cubic root of 85604059 is about 440.7220565099.

The spelling of 85604059 in words is "eighty-five million, six hundred four thousand, fifty-nine".