109975993 has 4 divisors (see below), whose sum is σ = 110327668. Its totient is φ = 109624320.

The previous prime is 109975967. The next prime is 109975997. The reversal of 109975993 is 399579901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 399579901 = 7 ⋅57082843.

It can be written as a sum of positive squares in 2 ways, for example, as 33028009 + 76947984 = 5747^2 + 8772^2 .

It is a cyclic number.

It is not a de Polignac number, because 109975993 - 2⁵ = 109975961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109975993.

It is not an unprimeable number, because it can be changed into a prime (109975997) 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, 175368 + ... + 175993.

It is an arithmetic number, because the mean of its divisors is an integer number (27581917).

Almost surely, 2^109975993 is an apocalyptic number.

It is an amenable number.

109975993 is a deficient number, since it is larger than the sum of its proper divisors (351675).

109975993 is an equidigital number, since it uses as much as digits as its factorization.

109975993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351674.

The product of its (nonzero) digits is 688905, while the sum is 52.

The square root of 109975993 is about 10486.9439304308. The cubic root of 109975993 is about 479.1071263167.

The spelling of 109975993 in words is "one hundred nine million, nine hundred seventy-five thousand, nine hundred ninety-three".