828543069 has 6 divisors (see below), whose sum is σ = 1196784446. Its totient is φ = 552362040.

The previous prime is 828543043. The next prime is 828543113. The reversal of 828543069 is 960345828.

828543069 is a `hidden beast` number, since 82 + 85 + 430 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 442892025 + 385651044 = 21045^2 + 19638^2 .

It is not a de Polignac number, because 828543069 - 2⁷ = 828542941 is a prime.

It is a super-2 number, since 2×828543069² = 1372967234375877522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828543019) 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 5 ways as a sum of consecutive naturals, for example, 46030162 + ... + 46030179.

Almost surely, 2^828543069 is an apocalyptic number.

It is an amenable number.

828543069 is a deficient number, since it is larger than the sum of its proper divisors (368241377).

828543069 is a wasteful number, since it uses less digits than its factorization.

828543069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92060347 (or 92060344 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 828543069 is about 28784.4240692775. The cubic root of 828543069 is about 939.2294382976.

The spelling of 828543069 in words is "eight hundred twenty-eight million, five hundred forty-three thousand, sixty-nine".