1396943 has 4 divisors (see below), whose sum is σ = 1420680. Its totient is φ = 1373208.

The previous prime is 1396939. The next prime is 1396949. The reversal of 1396943 is 3496931.

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 1396943 - 2² = 1396939 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 (1396949) 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, 11780 + ... + 11897.

It is an arithmetic number, because the mean of its divisors is an integer number (355170).

2^1396943 is an apocalyptic number.

1396943 is a deficient number, since it is larger than the sum of its proper divisors (23737).

1396943 is an equidigital number, since it uses as much as digits as its factorization.

1396943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23736.

The product of its digits is 17496, while the sum is 35.

The square root of 1396943 is about 1181.9234323762. The cubic root of 1396943 is about 111.7874102970.

The spelling of 1396943 in words is "one million, three hundred ninety-six thousand, nine hundred forty-three".