109973 has 4 divisors (see below), whose sum is σ = 116460. Its totient is φ = 103488.

The previous prime is 109961. The next prime is 109987. The reversal of 109973 is 379901.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40804 + 69169 = 202^2 + 263^2 .

It is a cyclic number.

It is not a de Polignac number, because 109973 - 2⁸ = 109717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109903) 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, 3218 + ... + 3251.

It is an arithmetic number, because the mean of its divisors is an integer number (29115).

2¹⁰⁹⁹⁷³ is an apocalyptic number.

It is an amenable number.

109973 is a deficient number, since it is larger than the sum of its proper divisors (6487).

109973 is an equidigital number, since it uses as much as digits as its factorization.

109973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6486.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 109973 is about 331.6217725060. The cubic root of 109973 is about 47.9102779972.

The spelling of 109973 in words is "one hundred nine thousand, nine hundred seventy-three".