828815897 has 16 divisors (see below), whose sum is σ = 1026853632. Its totient is φ = 651412800.

The previous prime is 828815863. The next prime is 828815899. The reversal of 828815897 is 798518828.

828815897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 828815897 - 2¹⁶ = 828750361 is a prime.

It is a super-2 number, since 2×828815897² = 1373871582239829218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (828815899) 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, 16418 + ... + 43899.

It is an arithmetic number, because the mean of its divisors is an integer number (64178352).

Almost surely, 2^828815897 is an apocalyptic number.

It is an amenable number.

828815897 is a deficient number, since it is larger than the sum of its proper divisors (198037735).

828815897 is a wasteful number, since it uses less digits than its factorization.

828815897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60488.

The product of its digits is 2580480, while the sum is 56.

The square root of 828815897 is about 28789.1628395131. The cubic root of 828815897 is about 939.3325188244.

The spelling of 828815897 in words is "eight hundred twenty-eight million, eight hundred fifteen thousand, eight hundred ninety-seven".