889117071 has 4 divisors (see below), whose sum is σ = 1185489432. Its totient is φ = 592744712.

The previous prime is 889117037. The next prime is 889117087. The reversal of 889117071 is 170711988.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 889117071 - 2⁶ = 889117007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889117091) 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, 148186176 + ... + 148186181.

It is an arithmetic number, because the mean of its divisors is an integer number (296372358).

Almost surely, 2^889117071 is an apocalyptic number.

889117071 is a deficient number, since it is larger than the sum of its proper divisors (296372361).

889117071 is a wasteful number, since it uses less digits than its factorization.

889117071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296372360.

The product of its (nonzero) digits is 28224, while the sum is 42.

The square root of 889117071 is about 29818.0661847813. The cubic root of 889117071 is about 961.5819803872.

The spelling of 889117071 in words is "eight hundred eighty-nine million, one hundred seventeen thousand, seventy-one".