109828 has 6 divisors (see below), whose sum is σ = 192206. Its totient is φ = 54912.

The previous prime is 109819. The next prime is 109829. The reversal of 109828 is 828901.

It can be written as a sum of positive squares in only one way, i.e., 66564 + 43264 = 258^2 + 208^2 .

It is a junction number, because it is equal to n+sod(n) for n = 109796 and 109805.

It is not an unprimeable number, because it can be changed into a prime (109829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13725 + ... + 13732.

2¹⁰⁹⁸²⁸ is an apocalyptic number.

It is an amenable number.

109828 is a deficient number, since it is larger than the sum of its proper divisors (82378).

109828 is a wasteful number, since it uses less digits than its factorization.

109828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27461 (or 27459 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 109828 is about 331.4030778372. The cubic root of 109828 is about 47.8892120818.

The spelling of 109828 in words is "one hundred nine thousand, eight hundred twenty-eight".