85597163 has 2 divisors, whose sum is σ = 85597164. Its totient is φ = 85597162.

The previous prime is 85597151. The next prime is 85597207. The reversal of 85597163 is 36179558.

It is an a-pointer prime, because the next prime (85597207) can be obtained adding 85597163 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85597163 is a prime.

It is not a weakly prime, because it can be changed into another prime (85597063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42798581 + 42798582.

It is an arithmetic number, because the mean of its divisors is an integer number (42798582).

Almost surely, 2^85597163 is an apocalyptic number.

85597163 is a deficient number, since it is larger than the sum of its proper divisors (1).

85597163 is an equidigital number, since it uses as much as digits as its factorization.

85597163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 44.

The square root of 85597163 is about 9251.8734859487. The cubic root of 85597163 is about 440.7102217871.

The spelling of 85597163 in words is "eighty-five million, five hundred ninety-seven thousand, one hundred sixty-three".