128068847 has 2 divisors, whose sum is σ = 128068848. Its totient is φ = 128068846.

The previous prime is 128068819. The next prime is 128068859. The reversal of 128068847 is 748860821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128068847 - 2⁶ = 128068783 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 128068798 and 128068807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128068247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64034423 + 64034424.

It is an arithmetic number, because the mean of its divisors is an integer number (64034424).

Almost surely, 2^128068847 is an apocalyptic number.

128068847 is a deficient number, since it is larger than the sum of its proper divisors (1).

128068847 is an equidigital number, since it uses as much as digits as its factorization.

128068847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172032, while the sum is 44.

The square root of 128068847 is about 11316.7507262465. The cubic root of 128068847 is about 504.0587597885.

The spelling of 128068847 in words is "one hundred twenty-eight million, sixty-eight thousand, eight hundred forty-seven".