85824647 has 8 divisors (see below), whose sum is σ = 89456640. Its totient is φ = 82246680.

The previous prime is 85824643. The next prime is 85824667. The reversal of 85824647 is 74642858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85824647 - 2² = 85824643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85824598 and 85824607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85824643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10247 + ... + 16632.

It is an arithmetic number, because the mean of its divisors is an integer number (11182080).

Almost surely, 2^85824647 is an apocalyptic number.

85824647 is a deficient number, since it is larger than the sum of its proper divisors (3631993).

85824647 is a wasteful number, since it uses less digits than its factorization.

85824647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27013.

The product of its digits is 430080, while the sum is 44.

The square root of 85824647 is about 9264.1592710834. The cubic root of 85824647 is about 441.1002886186.

The spelling of 85824647 in words is "eighty-five million, eight hundred twenty-four thousand, six hundred forty-seven".