85834447 has 2 divisors, whose sum is σ = 85834448. Its totient is φ = 85834446.

The previous prime is 85834423. The next prime is 85834481. The reversal of 85834447 is 74443858.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85834447 - 2¹⁵ = 85801679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85834247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42917223 + 42917224.

It is an arithmetic number, because the mean of its divisors is an integer number (42917224).

Almost surely, 2^85834447 is an apocalyptic number.

85834447 is a deficient number, since it is larger than the sum of its proper divisors (1).

85834447 is an equidigital number, since it uses as much as digits as its factorization.

85834447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 430080, while the sum is 43.

The square root of 85834447 is about 9264.6881760802. The cubic root of 85834447 is about 441.1170771848.

The spelling of 85834447 in words is "eighty-five million, eight hundred thirty-four thousand, four hundred forty-seven".