117899 has 2 divisors, whose sum is σ = 117900. Its totient is φ = 117898.

The previous prime is 117889. The next prime is 117911. The reversal of 117899 is 998711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117899 - 2⁴ = 117883 is a prime.

It is a Chen prime.

It is a plaindrome in base 10 and base 15.

It is not a weakly prime, because it can be changed into another prime (117809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58949 + 58950.

It is an arithmetic number, because the mean of its divisors is an integer number (58950).

2¹¹⁷⁸⁹⁹ is an apocalyptic number.

117899 is a deficient number, since it is larger than the sum of its proper divisors (1).

117899 is an equidigital number, since it uses as much as digits as its factorization.

117899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 35.

The square root of 117899 is about 343.3642380913. The cubic root of 117899 is about 49.0346832054.

The spelling of 117899 in words is "one hundred seventeen thousand, eight hundred ninety-nine".