85347859 has 2 divisors, whose sum is σ = 85347860. Its totient is φ = 85347858.

The previous prime is 85347853. The next prime is 85347907. The reversal of 85347859 is 95874358.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85347859 - 2⁵ = 85347827 is a prime.

It is not a weakly prime, because it can be changed into another prime (85347853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42673929 + 42673930.

It is an arithmetic number, because the mean of its divisors is an integer number (42673930).

Almost surely, 2^85347859 is an apocalyptic number.

85347859 is a deficient number, since it is larger than the sum of its proper divisors (1).

85347859 is an equidigital number, since it uses as much as digits as its factorization.

85347859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 49.

The square root of 85347859 is about 9238.3904983498. The cubic root of 85347859 is about 440.2819456721.

The spelling of 85347859 in words is "eighty-five million, three hundred forty-seven thousand, eight hundred fifty-nine".