889723081 has 16 divisors (see below), whose sum is σ = 975518208. Its totient is φ = 806500800.

The previous prime is 889723063. The next prime is 889723097. The reversal of 889723081 is 180327988.

It is a cyclic number.

It is not a de Polignac number, because 889723081 - 2¹⁵ = 889690313 is a prime.

It is a super-2 number, since 2×889723081² = 1583214321728265122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (889723181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248355 + ... + 251911.

It is an arithmetic number, because the mean of its divisors is an integer number (60969888).

Almost surely, 2^889723081 is an apocalyptic number.

It is an amenable number.

889723081 is a deficient number, since it is larger than the sum of its proper divisors (85795127).

889723081 is a wasteful number, since it uses less digits than its factorization.

889723081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3912.

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 889723081 is about 29828.2262462923. The cubic root of 889723081 is about 961.8003978007.

The spelling of 889723081 in words is "eight hundred eighty-nine million, seven hundred twenty-three thousand, eighty-one".