1993822 has 16 divisors (see below), whose sum is σ = 3196800. Its totient is φ = 929880.

The previous prime is 1993763. The next prime is 1993829. The reversal of 1993822 is 2283991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993829) 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 7 ways as a sum of consecutive naturals, for example, 2329 + ... + 3067.

It is an arithmetic number, because the mean of its divisors is an integer number (199800).

2^1993822 is an apocalyptic number.

1993822 is a deficient number, since it is larger than the sum of its proper divisors (1202978).

1993822 is a wasteful number, since it uses less digits than its factorization.

1993822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831.

The product of its digits is 7776, while the sum is 34.

The square root of 1993822 is about 1412.0276201265. The cubic root of 1993822 is about 125.8622413105.

The spelling of 1993822 in words is "one million, nine hundred ninety-three thousand, eight hundred twenty-two".