109683709 has 2 divisors, whose sum is σ = 109683710. Its totient is φ = 109683708.

The previous prime is 109683701. The next prime is 109683719. The reversal of 109683709 is 907386901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108368100 + 1315609 = 10410^2 + 1147^2 .

It is a cyclic number.

It is not a de Polignac number, because 109683709 - 2³ = 109683701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109683701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54841854 + 54841855.

It is an arithmetic number, because the mean of its divisors is an integer number (54841855).

Almost surely, 2^109683709 is an apocalyptic number.

It is an amenable number.

109683709 is a deficient number, since it is larger than the sum of its proper divisors (1).

109683709 is an equidigital number, since it uses as much as digits as its factorization.

109683709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 109683709 is about 10472.9990451637. Note that the first 3 decimals coincide. The cubic root of 109683709 is about 478.6823075763.

The spelling of 109683709 in words is "one hundred nine million, six hundred eighty-three thousand, seven hundred nine".