889800155 has 4 divisors (see below), whose sum is σ = 1067760192. Its totient is φ = 711840120.

The previous prime is 889800151. The next prime is 889800157. The reversal of 889800155 is 551008988.

889800155 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 889800155 - 2² = 889800151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (889800151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88980011 + ... + 88980020.

It is an arithmetic number, because the mean of its divisors is an integer number (266940048).

Almost surely, 2^889800155 is an apocalyptic number.

889800155 is a deficient number, since it is larger than the sum of its proper divisors (177960037).

889800155 is a wasteful number, since it uses less digits than its factorization.

889800155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177960036.

The product of its (nonzero) digits is 115200, while the sum is 44.

The square root of 889800155 is about 29829.5181824984. The cubic root of 889800155 is about 961.8281696115.

The spelling of 889800155 in words is "eight hundred eighty-nine million, eight hundred thousand, one hundred fifty-five".