109660393 has 2 divisors, whose sum is σ = 109660394. Its totient is φ = 109660392.

The previous prime is 109660391. The next prime is 109660403. The reversal of 109660393 is 393066901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69755904 + 39904489 = 8352^2 + 6317^2 .

It is an emirp because it is prime and its reverse (393066901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109660393 - 2¹ = 109660391 is a prime.

Together with 109660391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (109660391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54830196 + 54830197.

It is an arithmetic number, because the mean of its divisors is an integer number (54830197).

Almost surely, 2^109660393 is an apocalyptic number.

It is an amenable number.

109660393 is a deficient number, since it is larger than the sum of its proper divisors (1).

109660393 is an equidigital number, since it uses as much as digits as its factorization.

109660393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 109660393 is about 10471.8858378040. The cubic root of 109660393 is about 478.6483865631.

The spelling of 109660393 in words is "one hundred nine million, six hundred sixty thousand, three hundred ninety-three".