128064887 has 2 divisors, whose sum is σ = 128064888. Its totient is φ = 128064886.

The previous prime is 128064809. The next prime is 128064913. The reversal of 128064887 is 788460821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128064887 - 2¹² = 128060791 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128064787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64032443 + 64032444.

It is an arithmetic number, because the mean of its divisors is an integer number (64032444).

Almost surely, 2^128064887 is an apocalyptic number.

128064887 is a deficient number, since it is larger than the sum of its proper divisors (1).

128064887 is an equidigital number, since it uses as much as digits as its factorization.

128064887 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 128064887 is about 11316.5757630124. The cubic root of 128064887 is about 504.0535644234.

The spelling of 128064887 in words is "one hundred twenty-eight million, sixty-four thousand, eight hundred eighty-seven".