989088811 has 4 divisors (see below), whose sum is σ = 989151712. Its totient is φ = 989025912.

The previous prime is 989088791. The next prime is 989088901. The reversal of 989088811 is 118880989.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 989088811 - 2¹³ = 989080619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989088211) 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, 15550 + ... + 47116.

It is an arithmetic number, because the mean of its divisors is an integer number (247287928).

Almost surely, 2^989088811 is an apocalyptic number.

989088811 is a deficient number, since it is larger than the sum of its proper divisors (62901).

989088811 is a wasteful number, since it uses less digits than its factorization.

989088811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62900.

The product of its (nonzero) digits is 331776, while the sum is 52.

The square root of 989088811 is about 31449.7823680864. The cubic root of 989088811 is about 996.3496279982.

The spelling of 989088811 in words is "nine hundred eighty-nine million, eighty-eight thousand, eight hundred eleven".