989909223 has 8 divisors (see below), whose sum is σ = 1320069888. Its totient is φ = 659844024.

The previous prime is 989909191. The next prime is 989909227. The reversal of 989909223 is 322909989.

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

It is not a de Polignac number, because 989909223 - 2⁵ = 989909191 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989909227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5490 + ... + 44832.

It is an arithmetic number, because the mean of its divisors is an integer number (165008736).

Almost surely, 2^989909223 is an apocalyptic number.

989909223 is a deficient number, since it is larger than the sum of its proper divisors (330160665).

989909223 is a wasteful number, since it uses less digits than its factorization.

989909223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47733.

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 989909223 is about 31462.8228708106. The cubic root of 989909223 is about 996.6250300587.

The spelling of 989909223 in words is "nine hundred eighty-nine million, nine hundred nine thousand, two hundred twenty-three".