989256 has 32 divisors (see below), whose sum is σ = 2528640. Its totient is φ = 322368.

The previous prime is 989251. The next prime is 989279. The reversal of 989256 is 652989.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 989256.

It is not an unprimeable number, because it can be changed into a prime (989251) 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, 690 + ... + 1566.

It is an arithmetic number, because the mean of its divisors is an integer number (79020).

2⁹⁸⁹²⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1264320).

989256 is an abundant number, since it is smaller than the sum of its proper divisors (1539384).

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

989256 is a wasteful number, since it uses less digits than its factorization.

989256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933 (or 929 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 989256 is about 994.6134927699. The cubic root of 989256 is about 99.6405763609.

The spelling of 989256 in words is "nine hundred eighty-nine thousand, two hundred fifty-six".