128050887 has 8 divisors (see below), whose sum is σ = 170808304. Its totient is φ = 85330368.

The previous prime is 128050877. The next prime is 128050891. The reversal of 128050887 is 788050821.

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

It is not a de Polignac number, because 128050887 - 2¹⁰ = 128049863 is a prime.

It is a super-2 number, since 2×128050887² = 32794059322973538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128050847) 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, 273 + ... + 16005.

It is an arithmetic number, because the mean of its divisors is an integer number (21351038).

Almost surely, 2^128050887 is an apocalyptic number.

128050887 is a deficient number, since it is larger than the sum of its proper divisors (42757417).

128050887 is a wasteful number, since it uses less digits than its factorization.

128050887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18449.

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 128050887 is about 11315.9571844365. The cubic root of 128050887 is about 504.0351961122.

The spelling of 128050887 in words is "one hundred twenty-eight million, fifty thousand, eight hundred eighty-seven".