85992017 has 2 divisors, whose sum is σ = 85992018. Its totient is φ = 85992016.

The previous prime is 85992013. The next prime is 85992077. The reversal of 85992017 is 71029958.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83156161 + 2835856 = 9119^2 + 1684^2 .

It is a cyclic number.

It is not a de Polignac number, because 85992017 - 2² = 85992013 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85992013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42996008 + 42996009.

It is an arithmetic number, because the mean of its divisors is an integer number (42996009).

Almost surely, 2^85992017 is an apocalyptic number.

It is an amenable number.

85992017 is a deficient number, since it is larger than the sum of its proper divisors (1).

85992017 is an equidigital number, since it uses as much as digits as its factorization.

85992017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 85992017 is about 9273.1880709926. The cubic root of 85992017 is about 441.3868380690.

The spelling of 85992017 in words is "eighty-five million, nine hundred ninety-two thousand, seventeen".