117767387 has 2 divisors, whose sum is σ = 117767388. Its totient is φ = 117767386.

The previous prime is 117767371. The next prime is 117767389. The reversal of 117767387 is 783767711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117767387 - 2⁴ = 117767371 is a prime.

Together with 117767389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (117767389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58883693 + 58883694.

It is an arithmetic number, because the mean of its divisors is an integer number (58883694).

Almost surely, 2^117767387 is an apocalyptic number.

117767387 is a deficient number, since it is larger than the sum of its proper divisors (1).

117767387 is an equidigital number, since it uses as much as digits as its factorization.

117767387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345744, while the sum is 47.

The square root of 117767387 is about 10852.0683282036. The cubic root of 117767387 is about 490.1643028076.

The spelling of 117767387 in words is "one hundred seventeen million, seven hundred sixty-seven thousand, three hundred eighty-seven".