1973963 has 4 divisors (see below), whose sum is σ = 2007480. Its totient is φ = 1940448.

The previous prime is 1973957. The next prime is 1973971. The reversal of 1973963 is 3693791.

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 1973963 - 2¹⁰ = 1972939 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16670 + ... + 16787.

It is an arithmetic number, because the mean of its divisors is an integer number (501870).

2^1973963 is an apocalyptic number.

1973963 is a deficient number, since it is larger than the sum of its proper divisors (33517).

1973963 is an equidigital number, since it uses as much as digits as its factorization.

1973963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33516.

The product of its digits is 30618, while the sum is 38.

The square root of 1973963 is about 1404.9779357698. The cubic root of 1973963 is about 125.4429723496.

The spelling of 1973963 in words is "one million, nine hundred seventy-three thousand, nine hundred sixty-three".