1973443 has 4 divisors (see below), whose sum is σ = 1984528. Its totient is φ = 1962360.

The previous prime is 1973437. The next prime is 1973467. The reversal of 1973443 is 3443791.

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 1973443 - 2⁹ = 1972931 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (1973143) 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, 5271 + ... + 5632.

It is an arithmetic number, because the mean of its divisors is an integer number (496132).

2^1973443 is an apocalyptic number.

1973443 is a deficient number, since it is larger than the sum of its proper divisors (11085).

1973443 is a wasteful number, since it uses less digits than its factorization.

1973443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11084.

The product of its digits is 9072, while the sum is 31.

The square root of 1973443 is about 1404.7928672940. The cubic root of 1973443 is about 125.4319562576.

The spelling of 1973443 in words is "one million, nine hundred seventy-three thousand, four hundred forty-three".