117386939 has 2 divisors, whose sum is σ = 117386940. Its totient is φ = 117386938.

The previous prime is 117386933. The next prime is 117386953. The reversal of 117386939 is 939683711.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117386939 - 2¹² = 117382843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117386893 and 117386902.

It is not a weakly prime, because it can be changed into another prime (117386933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58693469 + 58693470.

It is an arithmetic number, because the mean of its divisors is an integer number (58693470).

Almost surely, 2^117386939 is an apocalyptic number.

117386939 is a deficient number, since it is larger than the sum of its proper divisors (1).

117386939 is an equidigital number, since it uses as much as digits as its factorization.

117386939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 47.

The square root of 117386939 is about 10834.5253241663. The cubic root of 117386939 is about 489.6359075110.

The spelling of 117386939 in words is "one hundred seventeen million, three hundred eighty-six thousand, nine hundred thirty-nine".