1373943 has 4 divisors (see below), whose sum is σ = 1831928. Its totient is φ = 915960.

The previous prime is 1373891. The next prime is 1373959. The reversal of 1373943 is 3493731.

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

It is not a de Polignac number, because 1373943 - 2⁹ = 1373431 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1373943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373543) 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, 228988 + ... + 228993.

It is an arithmetic number, because the mean of its divisors is an integer number (457982).

2^1373943 is an apocalyptic number.

1373943 is a deficient number, since it is larger than the sum of its proper divisors (457985).

1373943 is an equidigital number, since it uses as much as digits as its factorization.

1373943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457984.

The product of its digits is 6804, while the sum is 30.

The square root of 1373943 is about 1172.1531469906. The cubic root of 1373943 is about 111.1705033215.

The spelling of 1373943 in words is "one million, three hundred seventy-three thousand, nine hundred forty-three".