128650827 has 8 divisors (see below), whose sum is σ = 171639616. Its totient is φ = 85714632.

The previous prime is 128650817. The next prime is 128650829. The reversal of 128650827 is 728056821.

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

It is not a de Polignac number, because 128650827 - 2¹⁰ = 128649803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128650829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7033 + ... + 17514.

It is an arithmetic number, because the mean of its divisors is an integer number (21454952).

Almost surely, 2^128650827 is an apocalyptic number.

128650827 is a deficient number, since it is larger than the sum of its proper divisors (42988789).

128650827 is a wasteful number, since it uses less digits than its factorization.

128650827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26297.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 128650827 is about 11342.4347915251. The cubic root of 128650827 is about 504.8211332691.

The spelling of 128650827 in words is "one hundred twenty-eight million, six hundred fifty thousand, eight hundred twenty-seven".