117000809 has 2 divisors, whose sum is σ = 117000810. Its totient is φ = 117000808.

The previous prime is 117000799. The next prime is 117000833. The reversal of 117000809 is 908000711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97614400 + 19386409 = 9880^2 + 4403^2 .

It is an emirp because it is prime and its reverse (908000711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117000809 - 2¹² = 116996713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (117000899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58500404 + 58500405.

It is an arithmetic number, because the mean of its divisors is an integer number (58500405).

Almost surely, 2^117000809 is an apocalyptic number.

It is an amenable number.

117000809 is a deficient number, since it is larger than the sum of its proper divisors (1).

117000809 is an equidigital number, since it uses as much as digits as its factorization.

117000809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 117000809 is about 10816.6912223656. The cubic root of 117000809 is about 489.0984519410.

The spelling of 117000809 in words is "one hundred seventeen million, eight hundred nine", and thus it is an aban number.