85028447 has 8 divisors (see below), whose sum is σ = 101400576. Its totient is φ = 69712632.

The previous prime is 85028431. The next prime is 85028459. The reversal of 85028447 is 74482058.

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

It is not a de Polignac number, because 85028447 - 2⁴ = 85028431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85028447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85028467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263903 + ... + 264224.

It is an arithmetic number, because the mean of its divisors is an integer number (12675072).

Almost surely, 2^85028447 is an apocalyptic number.

85028447 is a deficient number, since it is larger than the sum of its proper divisors (16372129).

85028447 is a wasteful number, since it uses less digits than its factorization.

85028447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528157.

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 85028447 is about 9221.0870834192. The cubic root of 85028447 is about 439.7320113974.

The spelling of 85028447 in words is "eighty-five million, twenty-eight thousand, four hundred forty-seven".