1994323 has 4 divisors (see below), whose sum is σ = 2058688. Its totient is φ = 1929960.

The previous prime is 1994299. The next prime is 1994327. The reversal of 1994323 is 3234991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3234991 = 439 ⋅7369.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1994323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 64333 = 1994323 / (1 + 9 + 9 + 4 + 3 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1994327) 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, 32136 + ... + 32197.

It is an arithmetic number, because the mean of its divisors is an integer number (514672).

2^1994323 is an apocalyptic number.

1994323 is a deficient number, since it is larger than the sum of its proper divisors (64365).

1994323 is an equidigital number, since it uses as much as digits as its factorization.

1994323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64364.

The product of its digits is 5832, while the sum is 31.

The square root of 1994323 is about 1412.2050134453. The cubic root of 1994323 is about 125.8727824892.

The spelling of 1994323 in words is "one million, nine hundred ninety-four thousand, three hundred twenty-three".