828081 has 6 divisors (see below), whose sum is σ = 1196130. Its totient is φ = 552048.

The previous prime is 828071. The next prime is 828101. The reversal of 828081 is 180828.

It can be written as a sum of positive squares in only one way, i.e., 680625 + 147456 = 825^2 + 384^2 .

It is not a de Polignac number, because 828081 - 2¹⁴ = 811697 is a prime.

It is a super-2 number, since 2×828081² = 1371436285122, which contains 22 as substring.

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (828011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45996 + ... + 46013.

It is an arithmetic number, because the mean of its divisors is an integer number (199355).

2⁸²⁸⁰⁸¹ is an apocalyptic number.

It is an amenable number.

828081 is a deficient number, since it is larger than the sum of its proper divisors (368049).

828081 is a wasteful number, since it uses less digits than its factorization.

828081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92015 (or 92012 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 828081 is about 909.9895603797. The cubic root of 828081 is about 93.9054806656.

The spelling of 828081 in words is "eight hundred twenty-eight thousand, eighty-one".