128800894 has 16 divisors (see below), whose sum is σ = 198858240. Its totient is φ = 62541400.

The previous prime is 128800883. The next prime is 128800909. The reversal of 128800894 is 498008821.

It is a congruent number.

It is an unprimeable number.

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, 3219 + ... + 16369.

It is an arithmetic number, because the mean of its divisors is an integer number (12428640).

Almost surely, 2^128800894 is an apocalyptic number.

128800894 is a deficient number, since it is larger than the sum of its proper divisors (70057346).

128800894 is a wasteful number, since it uses less digits than its factorization.

128800894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13295.

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 128800894 is about 11349.0481539202. The cubic root of 128800894 is about 505.0173428021.

The spelling of 128800894 in words is "one hundred twenty-eight million, eight hundred thousand, eight hundred ninety-four".