989748 has 36 divisors (see below), whose sum is σ = 2635360. Its totient is φ = 312336.

The previous prime is 989743. The next prime is 989749. The reversal of 989748 is 847989.

989748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×989748² = 1959202207008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40 + ... + 1407.

2⁹⁸⁹⁷⁴⁸ 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 989748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1317680).

989748 is an abundant number, since it is smaller than the sum of its proper divisors (1645612).

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

989748 is a wasteful number, since it uses less digits than its factorization.

989748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476 (or 1471 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 989748 is about 994.8607942823. The cubic root of 989748 is about 99.6570921528.

The spelling of 989748 in words is "nine hundred eighty-nine thousand, seven hundred forty-eight".