117659999 has 2 divisors, whose sum is σ = 117660000. Its totient is φ = 117659998.

The previous prime is 117659981. The next prime is 117660029. The reversal of 117659999 is 999956711.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117659999 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117659959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58829999 + 58830000.

It is an arithmetic number, because the mean of its divisors is an integer number (58830000).

Almost surely, 2^117659999 is an apocalyptic number.

117659999 is a deficient number, since it is larger than the sum of its proper divisors (1).

117659999 is an equidigital number, since it uses as much as digits as its factorization.

117659999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1377810, while the sum is 56.

The square root of 117659999 is about 10847.1193871922. The cubic root of 117659999 is about 490.0152695505.

The spelling of 117659999 in words is "one hundred seventeen million, six hundred fifty-nine thousand, nine hundred ninety-nine".