828223911 has 12 divisors (see below), whose sum is σ = 1196605488. Its totient is φ = 552019104.

The previous prime is 828223853. The next prime is 828223939. The reversal of 828223911 is 119322828.

It is not a de Polignac number, because 828223911 - 2²¹ = 826126759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828223961) 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 11 ways as a sum of consecutive naturals, for example, 44091 + ... + 60003.

It is an arithmetic number, because the mean of its divisors is an integer number (99717124).

Almost surely, 2^828223911 is an apocalyptic number.

828223911 is a deficient number, since it is larger than the sum of its proper divisors (368381577).

828223911 is a wasteful number, since it uses less digits than its factorization.

828223911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21702 (or 21699 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 828223911 is about 28778.8795994563. The cubic root of 828223911 is about 939.1088245366.

The spelling of 828223911 in words is "eight hundred twenty-eight million, two hundred twenty-three thousand, nine hundred eleven".