812728298 has 16 divisors (see below), whose sum is σ = 1234262016. Its totient is φ = 401329200.

The previous prime is 812728297. The next prime is 812728303. The reversal of 812728298 is 892827218.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (812728297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73748 + ... + 84048.

It is an arithmetic number, because the mean of its divisors is an integer number (77141376).

Almost surely, 2^812728298 is an apocalyptic number.

812728298 is a deficient number, since it is larger than the sum of its proper divisors (421533718).

812728298 is a wasteful number, since it uses less digits than its factorization.

812728298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10789.

The product of its digits is 258048, while the sum is 47.

The square root of 812728298 is about 28508.3899580457. The cubic root of 812728298 is about 933.2151784386.

The spelling of 812728298 in words is "eight hundred twelve million, seven hundred twenty-eight thousand, two hundred ninety-eight".