989230971 has 8 divisors (see below), whose sum is σ = 1319241024. Its totient is φ = 659354120.

The previous prime is 989230951. The next prime is 989230981. The reversal of 989230971 is 179032989.

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

It is a cyclic number.

It is not a de Polignac number, because 989230971 - 2⁵ = 989230939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 989230971.

It is not an unprimeable number, because it can be changed into a prime (989230951) 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, 14445 + ... + 46766.

It is an arithmetic number, because the mean of its divisors is an integer number (164905128).

Almost surely, 2^989230971 is an apocalyptic number.

989230971 is a deficient number, since it is larger than the sum of its proper divisors (330010053).

989230971 is a wasteful number, since it uses less digits than its factorization.

989230971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66601.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 989230971 is about 31452.0423979111. The cubic root of 989230971 is about 996.3973602397.

The spelling of 989230971 in words is "nine hundred eighty-nine million, two hundred thirty thousand, nine hundred seventy-one".