128885087 has 8 divisors (see below), whose sum is σ = 131274000. Its totient is φ = 126503104.

The previous prime is 128885063. The next prime is 128885101. The reversal of 128885087 is 780588821.

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

It is a cyclic number.

It is not a de Polignac number, because 128885087 - 2²⁶ = 61776223 is a prime.

It is a super-2 number, since 2×128885087² = 33222731301995138, 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 (128885027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49289 + ... + 51837.

It is an arithmetic number, because the mean of its divisors is an integer number (16409250).

Almost surely, 2^128885087 is an apocalyptic number.

128885087 is a deficient number, since it is larger than the sum of its proper divisors (2388913).

128885087 is an equidigital number, since it uses as much as digits as its factorization.

128885087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3465.

The product of its (nonzero) digits is 286720, while the sum is 47.

The square root of 128885087 is about 11352.7568017641. The cubic root of 128885087 is about 505.1273566971.

The spelling of 128885087 in words is "one hundred twenty-eight million, eight hundred eighty-five thousand, eighty-seven".