85608247 has 2 divisors, whose sum is σ = 85608248. Its totient is φ = 85608246.

The previous prime is 85608191. The next prime is 85608251. The reversal of 85608247 is 74280658.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85608247 - 2⁷ = 85608119 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85603247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42804123 + 42804124.

It is an arithmetic number, because the mean of its divisors is an integer number (42804124).

Almost surely, 2^85608247 is an apocalyptic number.

85608247 is a deficient number, since it is larger than the sum of its proper divisors (1).

85608247 is an equidigital number, since it uses as much as digits as its factorization.

85608247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 85608247 is about 9252.4724803698. The cubic root of 85608247 is about 440.7292435284.

It can be divided in two parts, 8560 and 8247, that added together give a 5-th power (16807 = 7⁵).

The spelling of 85608247 in words is "eighty-five million, six hundred eight thousand, two hundred forty-seven".