989421711 has 8 divisors (see below), whose sum is σ = 1322092464. Its totient is φ = 658182720.

The previous prime is 989421703. The next prime is 989421731. The reversal of 989421711 is 117124989.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 989421711 - 2³ = 989421703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989421731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356326 + ... + 359091.

It is an arithmetic number, because the mean of its divisors is an integer number (165261558).

Almost surely, 2^989421711 is an apocalyptic number.

989421711 is a deficient number, since it is larger than the sum of its proper divisors (332670753).

989421711 is a wasteful number, since it uses less digits than its factorization.

989421711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715881.

The product of its digits is 36288, while the sum is 42.

The square root of 989421711 is about 31455.0744872747. The cubic root of 989421711 is about 996.4613967233.

The spelling of 989421711 in words is "nine hundred eighty-nine million, four hundred twenty-one thousand, seven hundred eleven".