985424 has 30 divisors (see below), whose sum is σ = 2102730. Its totient is φ = 447040.

The previous prime is 985417. The next prime is 985433. The reversal of 985424 is 424589.

985424 = T₂₃₂ + T₂₃₃ + ... + T₂₆₃.

It can be written as a sum of positive squares in only one way, i.e., 937024 + 48400 = 968^2 + 220^2 .

It is a congruent number.

It is an unprimeable number.

985424 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 5 ways as a sum of consecutive naturals, for example, 1682 + ... + 2190.

It is an arithmetic number, because the mean of its divisors is an integer number (70091).

2⁹⁸⁵⁴²⁴ 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 985424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1051365).

985424 is an abundant number, since it is smaller than the sum of its proper divisors (1117306).

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

985424 is a wasteful number, since it uses less digits than its factorization.

985424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 522 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 985424 is about 992.6852471957. The cubic root of 985424 is about 99.5117533653.

The spelling of 985424 in words is "nine hundred eighty-five thousand, four hundred twenty-four".