117669913 has 2 divisors, whose sum is σ = 117669914. Its totient is φ = 117669912.

The previous prime is 117669899. The next prime is 117669931. The reversal of 117669913 is 319966711.

Together with next prime (117669931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104796169 + 12873744 = 10237^2 + 3588^2 .

It is a cyclic number.

It is not a de Polignac number, because 117669913 - 2⁹ = 117669401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117669913.

It is not a weakly prime, because it can be changed into another prime (117669313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58834956 + 58834957.

It is an arithmetic number, because the mean of its divisors is an integer number (58834957).

Almost surely, 2^117669913 is an apocalyptic number.

It is an amenable number.

117669913 is a deficient number, since it is larger than the sum of its proper divisors (1).

117669913 is an equidigital number, since it uses as much as digits as its factorization.

117669913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 43.

The square root of 117669913 is about 10847.5763652532. The cubic root of 117669913 is about 490.0290320158.

The spelling of 117669913 in words is "one hundred seventeen million, six hundred sixty-nine thousand, nine hundred thirteen".