117927899 has 2 divisors, whose sum is σ = 117927900. Its totient is φ = 117927898.

The previous prime is 117927883. The next prime is 117927907. The reversal of 117927899 is 998729711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117927899 - 2⁴ = 117927883 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117927899.

It is not a weakly prime, because it can be changed into another prime (117921899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58963949 + 58963950.

It is an arithmetic number, because the mean of its divisors is an integer number (58963950).

Almost surely, 2^117927899 is an apocalyptic number.

117927899 is a deficient number, since it is larger than the sum of its proper divisors (1).

117927899 is an equidigital number, since it uses as much as digits as its factorization.

117927899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 53.

The square root of 117927899 is about 10859.4612665638. The cubic root of 117927899 is about 490.3868928274.

It can be divided in two parts, 11792 and 7899, that added together give a palindrome (19691).

The spelling of 117927899 in words is "one hundred seventeen million, nine hundred twenty-seven thousand, eight hundred ninety-nine".