85009147 has 8 divisors (see below), whose sum is σ = 86676480. Its totient is φ = 83349480.

The previous prime is 85009139. The next prime is 85009159. The reversal of 85009147 is 74190058.

It is a happy number.

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 85009147 - 2³ = 85009139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85009187) 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, 23758 + ... + 27100.

It is an arithmetic number, because the mean of its divisors is an integer number (10834560).

Almost surely, 2^85009147 is an apocalyptic number.

85009147 is a deficient number, since it is larger than the sum of its proper divisors (1667333).

85009147 is a wasteful number, since it uses less digits than its factorization.

85009147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3833.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 85009147 is about 9220.0405096724. The cubic root of 85009147 is about 439.6987383368.

The spelling of 85009147 in words is "eighty-five million, nine thousand, one hundred forty-seven".