828566081 has 8 divisors (see below), whose sum is σ = 947204160. Its totient is φ = 709995888.

The previous prime is 828566071. The next prime is 828566107. The reversal of 828566081 is 180665828.

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

It is not a de Polignac number, because 828566081 - 2⁶ = 828566017 is a prime.

It is a super-2 number, since 2×828566081² = 1373043501167397122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (828566021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12635 + ... + 42623.

It is an arithmetic number, because the mean of its divisors is an integer number (118400520).

Almost surely, 2^828566081 is an apocalyptic number.

It is an amenable number.

828566081 is a deficient number, since it is larger than the sum of its proper divisors (118638079).

828566081 is a wasteful number, since it uses less digits than its factorization.

828566081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33943.

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 828566081 is about 28784.8237965773. The cubic root of 828566081 is about 939.2381336202.

The spelling of 828566081 in words is "eight hundred twenty-eight million, five hundred sixty-six thousand, eighty-one".