889988711 has 4 divisors (see below), whose sum is σ = 891570072. Its totient is φ = 888407352.

The previous prime is 889988707. The next prime is 889988731. The reversal of 889988711 is 117889988.

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 889988711 - 2² = 889988707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889988731) 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, 789836 + ... + 790961.

It is an arithmetic number, because the mean of its divisors is an integer number (222892518).

Almost surely, 2^889988711 is an apocalyptic number.

889988711 is a deficient number, since it is larger than the sum of its proper divisors (1581361).

889988711 is a wasteful number, since it uses less digits than its factorization.

889988711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581360.

The product of its digits is 2322432, while the sum is 59.

The square root of 889988711 is about 29832.6785756827. The cubic root of 889988711 is about 961.8961045901.

The spelling of 889988711 in words is "eight hundred eighty-nine million, nine hundred eighty-eight thousand, seven hundred eleven".