928881 has 8 divisors (see below), whose sum is σ = 1376160. Its totient is φ = 619236.

The previous prime is 928871. The next prime is 928883. The reversal of 928881 is 188829.

928881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 928881 - 2⁵ = 928849 is a prime.

It is a super-2 number, since 2×928881² = 1725639824322, which contains 22 as substring.

928881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (928883) 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, 17175 + ... + 17228.

It is an arithmetic number, because the mean of its divisors is an integer number (172020).

2⁹²⁸⁸⁸¹ is an apocalyptic number.

It is an amenable number.

928881 is a deficient number, since it is larger than the sum of its proper divisors (447279).

928881 is a wasteful number, since it uses less digits than its factorization.

928881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34412 (or 34406 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 928881 is about 963.7847270008. The cubic root of 928881 is about 97.5708360974.

The spelling of 928881 in words is "nine hundred twenty-eight thousand, eight hundred eighty-one".