1984963 has 4 divisors (see below), whose sum is σ = 2053440. Its totient is φ = 1916488.

The previous prime is 1984921. The next prime is 1984979. The reversal of 1984963 is 3694891.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1984963 - 2¹³ = 1976771 is a prime.

It is a super-2 number, since 2×1984963² = 7880156222738, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

1984963 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1984163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34195 + ... + 34252.

It is an arithmetic number, because the mean of its divisors is an integer number (513360).

2^1984963 is an apocalyptic number.

1984963 is a deficient number, since it is larger than the sum of its proper divisors (68477).

1984963 is an equidigital number, since it uses as much as digits as its factorization.

1984963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68476.

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

The square root of 1984963 is about 1408.8871494907. The cubic root of 1984963 is about 125.6755531135.

The spelling of 1984963 in words is "one million, nine hundred eighty-four thousand, nine hundred sixty-three".