85008247 has 2 divisors, whose sum is σ = 85008248. Its totient is φ = 85008246.

The previous prime is 85008241. The next prime is 85008263. The reversal of 85008247 is 74280058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85008247 - 2³ = 85008239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85008241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42504123 + 42504124.

It is an arithmetic number, because the mean of its divisors is an integer number (42504124).

Almost surely, 2^85008247 is an apocalyptic number.

85008247 is a deficient number, since it is larger than the sum of its proper divisors (1).

85008247 is an equidigital number, since it uses as much as digits as its factorization.

85008247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 85008247 is about 9219.9917028162. The cubic root of 85008247 is about 439.6971866204.

The spelling of 85008247 in words is "eighty-five million, eight thousand, two hundred forty-seven".