117887899 has 2 divisors, whose sum is σ = 117887900. Its totient is φ = 117887898.

The previous prime is 117887893. The next prime is 117887921. The reversal of 117887899 is 998788711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117887899 - 2¹⁹ = 117363611 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (117887893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58943949 + 58943950.

It is an arithmetic number, because the mean of its divisors is an integer number (58943950).

Almost surely, 2^117887899 is an apocalyptic number.

117887899 is a deficient number, since it is larger than the sum of its proper divisors (1).

117887899 is an equidigital number, since it uses as much as digits as its factorization.

117887899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 58.

The square root of 117887899 is about 10857.6193983764. The cubic root of 117887899 is about 490.3314417309.

The spelling of 117887899 in words is "one hundred seventeen million, eight hundred eighty-seven thousand, eight hundred ninety-nine".