109779313 has 8 divisors (see below), whose sum is σ = 125737920. Its totient is φ = 93889680.

The previous prime is 109779311. The next prime is 109779323. The reversal of 109779313 is 313977901.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 109779313 - 2¹ = 109779311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109779311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13783 + ... + 20236.

It is an arithmetic number, because the mean of its divisors is an integer number (15717240).

Almost surely, 2^109779313 is an apocalyptic number.

It is an amenable number.

109779313 is a deficient number, since it is larger than the sum of its proper divisors (15958607).

109779313 is an equidigital number, since it uses as much as digits as its factorization.

109779313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34487.

The product of its (nonzero) digits is 35721, while the sum is 40.

The square root of 109779313 is about 10477.5623596331. The cubic root of 109779313 is about 478.8213457061.

The spelling of 109779313 in words is "one hundred nine million, seven hundred seventy-nine thousand, three hundred thirteen".