107999909 has 2 divisors, whose sum is σ = 107999910. Its totient is φ = 107999908.

The previous prime is 107999891. The next prime is 107999917. The reversal of 107999909 is 909999701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107702884 + 297025 = 10378^2 + 545^2 .

It is a cyclic number.

It is not a de Polignac number, because 107999909 - 2¹⁶ = 107934373 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (107999999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53999954 + 53999955.

It is an arithmetic number, because the mean of its divisors is an integer number (53999955).

Almost surely, 2^107999909 is an apocalyptic number.

It is an amenable number.

107999909 is a deficient number, since it is larger than the sum of its proper divisors (1).

107999909 is an equidigital number, since it uses as much as digits as its factorization.

107999909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 413343, while the sum is 53.

The square root of 107999909 is about 10392.3004671728. The cubic root of 107999909 is about 476.2201818372.

The spelling of 107999909 in words is "one hundred seven million, nine hundred ninety-nine thousand, nine hundred nine".