109849823 has 4 divisors (see below), whose sum is σ = 109885008. Its totient is φ = 109814640.

The previous prime is 109849813. The next prime is 109849829. The reversal of 109849823 is 328948901.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109849823 - 2⁴ = 109849807 is a prime.

It is a super-2 number, since 2×109849823² = 24133967226262658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109849829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12398 + ... + 19323.

It is an arithmetic number, because the mean of its divisors is an integer number (27471252).

Almost surely, 2^109849823 is an apocalyptic number.

109849823 is a deficient number, since it is larger than the sum of its proper divisors (35185).

109849823 is an equidigital number, since it uses as much as digits as its factorization.

109849823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35184.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 109849823 is about 10480.9266288816. The cubic root of 109849823 is about 478.9238375949.

The spelling of 109849823 in words is "one hundred nine million, eight hundred forty-nine thousand, eight hundred twenty-three".