128895486 has 8 divisors (see below), whose sum is σ = 257790984. Its totient is φ = 42965160.

The previous prime is 128895461. The next prime is 128895499. The reversal of 128895486 is 684598821.

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

128895486 is an admirable number.

It is a super-2 number, since 2×128895486² = 33228092622352392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10741285 + ... + 10741296.

It is an arithmetic number, because the mean of its divisors is an integer number (32223873).

Almost surely, 2^128895486 is an apocalyptic number.

128895486 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128895486 is a wasteful number, since it uses less digits than its factorization.

128895486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21482586.

The product of its digits is 1105920, while the sum is 51.

The square root of 128895486 is about 11353.2147870108. The cubic root of 128895486 is about 505.1409416102.

The spelling of 128895486 in words is "one hundred twenty-eight million, eight hundred ninety-five thousand, four hundred eighty-six".