989766 has 16 divisors (see below), whose sum is σ = 2199600. Its totient is φ = 329904.

The previous prime is 989761. The next prime is 989777. The reversal of 989766 is 667989.

989766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×989766³ = 2908833397237521288, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989761) by changing a digit.

989766 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9111 + ... + 9218.

It is an arithmetic number, because the mean of its divisors is an integer number (137475).

2⁹⁸⁹⁷⁶⁶ is an apocalyptic number.

989766 is an abundant number, since it is smaller than the sum of its proper divisors (1209834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

989766 is a wasteful number, since it uses less digits than its factorization.

989766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18340 (or 18334 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 989766 is about 994.8698407329. The cubic root of 989766 is about 99.6576962853.

The spelling of 989766 in words is "nine hundred eighty-nine thousand, seven hundred sixty-six".