885728215 has 4 divisors (see below), whose sum is σ = 1062873864. Its totient is φ = 708582568.

The previous prime is 885728201. The next prime is 885728227. The reversal of 885728215 is 512827588.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 885728215 - 2¹¹ = 885726167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 88572817 + ... + 88572826.

It is an arithmetic number, because the mean of its divisors is an integer number (265718466).

Almost surely, 2^885728215 is an apocalyptic number.

885728215 is a deficient number, since it is larger than the sum of its proper divisors (177145649).

885728215 is a wasteful number, since it uses less digits than its factorization.

885728215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177145648.

The product of its digits is 358400, while the sum is 46.

The square root of 885728215 is about 29761.1863842825. The cubic root of 885728215 is about 960.3587399863.

The spelling of 885728215 in words is "eight hundred eighty-five million, seven hundred twenty-eight thousand, two hundred fifteen".