109826 has 8 divisors (see below), whose sum is σ = 166860. Its totient is φ = 54208.

The previous prime is 109819. The next prime is 109829. The reversal of 109826 is 628901.

It can be written as a sum of positive squares in 2 ways, for example, as 87025 + 22801 = 295^2 + 151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 109795 and 109804.

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

109826 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 3 ways as a sum of consecutive naturals, for example, 131 + ... + 486.

2¹⁰⁹⁸²⁶ is an apocalyptic number.

109826 is a deficient number, since it is larger than the sum of its proper divisors (57034).

109826 is an equidigital number, since it uses as much as digits as its factorization.

109826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 109826 is about 331.4000603500. The cubic root of 109826 is about 47.8889213878. Note that the first 3 decimals are identical.

The spelling of 109826 in words is "one hundred nine thousand, eight hundred twenty-six".