1983648 has 24 divisors (see below), whose sum is σ = 5207328. Its totient is φ = 661184.

The previous prime is 1983647. The next prime is 1983649. The reversal of 1983648 is 8463891.

It is an interprime number because it is at equal distance from previous prime (1983647) and next prime (1983649).

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10236 + ... + 10427.

It is an arithmetic number, because the mean of its divisors is an integer number (216972).

2^1983648 is an apocalyptic number.

It is an amenable number.

1983648 is an abundant number, since it is smaller than the sum of its proper divisors (3223680).

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

1983648 is a wasteful number, since it uses less digits than its factorization.

1983648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20676 (or 20668 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 1983648 is about 1408.4203917865. The cubic root of 1983648 is about 125.6477944331.

The spelling of 1983648 in words is "one million, nine hundred eighty-three thousand, six hundred forty-eight".