108776009 has 2 divisors, whose sum is σ = 108776010. Its totient is φ = 108776008.

The previous prime is 108775991. The next prime is 108776033. The reversal of 108776009 is 900677801.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60403984 + 48372025 = 7772^2 + 6955^2 .

It is a cyclic number.

It is not a de Polignac number, because 108776009 - 2¹² = 108771913 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (108776089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54388004 + 54388005.

It is an arithmetic number, because the mean of its divisors is an integer number (54388005).

Almost surely, 2^108776009 is an apocalyptic number.

It is an amenable number.

108776009 is a deficient number, since it is larger than the sum of its proper divisors (1).

108776009 is an equidigital number, since it uses as much as digits as its factorization.

108776009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 108776009 is about 10429.5737688556. The cubic root of 108776009 is about 477.3581849081.

The spelling of 108776009 in words is "one hundred eight million, seven hundred seventy-six thousand, nine".