117893647 has 2 divisors, whose sum is σ = 117893648. Its totient is φ = 117893646.

The previous prime is 117893639. The next prime is 117893687. The reversal of 117893647 is 746398711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117893647 - 2³ = 117893639 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 117893597 and 117893606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117893617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58946823 + 58946824.

It is an arithmetic number, because the mean of its divisors is an integer number (58946824).

Almost surely, 2^117893647 is an apocalyptic number.

117893647 is a deficient number, since it is larger than the sum of its proper divisors (1).

117893647 is an equidigital number, since it uses as much as digits as its factorization.

117893647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 46.

The square root of 117893647 is about 10857.8840940581. The cubic root of 117893647 is about 490.3394108251.

The spelling of 117893647 in words is "one hundred seventeen million, eight hundred ninety-three thousand, six hundred forty-seven".