1963984 has 20 divisors (see below), whose sum is σ = 4151520. Its totient is φ = 892640.

The previous prime is 1963981. The next prime is 1963999. The reversal of 1963984 is 4893691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1963981) 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, 5404 + ... + 5755.

It is an arithmetic number, because the mean of its divisors is an integer number (207576).

2^1963984 is an apocalyptic number.

It is an amenable number.

1963984 is an abundant number, since it is smaller than the sum of its proper divisors (2187536).

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

1963984 is a wasteful number, since it uses less digits than its factorization.

1963984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11178 (or 11172 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 1963984 is about 1401.4221348330. The cubic root of 1963984 is about 125.2312306620.

The spelling of 1963984 in words is "one million, nine hundred sixty-three thousand, nine hundred eighty-four".