885521 has 16 divisors (see below), whose sum is σ = 1123584. Its totient is φ = 679104.

The previous prime is 885517. The next prime is 885529. The reversal of 885521 is 125588.

It is a cyclic number.

It is not a de Polignac number, because 885521 - 2² = 885517 is a prime.

885521 is a Rhonda number in base 10.

Its product of digits (3200) is a multiple of the sum of its prime divisors (320).

It is a nialpdrome in base 10 and base 16.

It is not an unprimeable number, because it can be changed into a prime (885529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3236 + ... + 3498.

It is an arithmetic number, because the mean of its divisors is an integer number (70224).

2⁸⁸⁵⁵²¹ is an apocalyptic number.

It is an amenable number.

885521 is a deficient number, since it is larger than the sum of its proper divisors (238063).

885521 is a wasteful number, since it uses less digits than its factorization.

885521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320.

The product of its digits is 3200, while the sum is 29.

The square root of 885521 is about 941.0212537451. The cubic root of 885521 is about 96.0283842573.

The spelling of 885521 in words is "eight hundred eighty-five thousand, five hundred twenty-one".