109790729 has 4 divisors (see below), whose sum is σ = 112758084. Its totient is φ = 106823376.

The previous prime is 109790713. The next prime is 109790767. The reversal of 109790729 is 927097901.

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 105103504 + 4687225 = 10252^2 + 2165^2 .

It is a cyclic number.

It is not a de Polignac number, because 109790729 - 2⁴ = 109790713 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 109790729.

It is not an unprimeable number, because it can be changed into a prime (109790929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1483622 + ... + 1483695.

It is an arithmetic number, because the mean of its divisors is an integer number (28189521).

Almost surely, 2^109790729 is an apocalyptic number.

It is an amenable number.

109790729 is a deficient number, since it is larger than the sum of its proper divisors (2967355).

109790729 is an equidigital number, since it uses as much as digits as its factorization.

109790729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967354.

The product of its (nonzero) digits is 71442, while the sum is 44.

The square root of 109790729 is about 10478.1071286755. The cubic root of 109790729 is about 478.8379427463.

The spelling of 109790729 in words is "one hundred nine million, seven hundred ninety thousand, seven hundred twenty-nine".