983550 has 48 divisors (see below), whose sum is σ = 2499840. Its totient is φ = 255840.

The previous prime is 983533. The next prime is 983557. The reversal of 983550 is 55389.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 983550.

It is not an unprimeable number, because it can be changed into a prime (983557) by changing a digit.

983550 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 23 ways as a sum of consecutive naturals, for example, 11809 + ... + 11891.

It is an arithmetic number, because the mean of its divisors is an integer number (52080).

2⁹⁸³⁵⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 983550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1249920).

983550 is an abundant number, since it is smaller than the sum of its proper divisors (1516290).

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

983550 is a wasteful number, since it uses less digits than its factorization.

983550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 983550 is about 991.7408935806. The cubic root of 983550 is about 99.4486321894.

The spelling of 983550 in words is "nine hundred eighty-three thousand, five hundred fifty".