117838933 has 2 divisors, whose sum is σ = 117838934. Its totient is φ = 117838932.

The previous prime is 117838921. The next prime is 117838949. The reversal of 117838933 is 339838711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116143729 + 1695204 = 10777^2 + 1302^2 .

It is a cyclic number.

It is not a de Polignac number, because 117838933 - 2²¹ = 115741781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117838933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117838433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58919466 + 58919467.

It is an arithmetic number, because the mean of its divisors is an integer number (58919467).

Almost surely, 2^117838933 is an apocalyptic number.

It is an amenable number.

117838933 is a deficient number, since it is larger than the sum of its proper divisors (1).

117838933 is an equidigital number, since it uses as much as digits as its factorization.

117838933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 43.

The square root of 117838933 is about 10855.3642499918. The cubic root of 117838933 is about 490.2635441928.

The spelling of 117838933 in words is "one hundred seventeen million, eight hundred thirty-eight thousand, nine hundred thirty-three".