128063787 has 8 divisors (see below), whose sum is σ = 174916560. Its totient is φ = 83293440.

The previous prime is 128063779. The next prime is 128063813. The reversal of 128063787 is 787360821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128063787 - 2³ = 128063779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128063777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520462 + ... + 520707.

It is an arithmetic number, because the mean of its divisors is an integer number (21864570).

Almost surely, 2^128063787 is an apocalyptic number.

128063787 is a deficient number, since it is larger than the sum of its proper divisors (46852773).

128063787 is a wasteful number, since it uses less digits than its factorization.

128063787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041213.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 128063787 is about 11316.5271616340. The cubic root of 128063787 is about 504.0521212474.

The spelling of 128063787 in words is "one hundred twenty-eight million, sixty-three thousand, seven hundred eighty-seven".