1993826 has 8 divisors (see below), whose sum is σ = 3027024. Its totient is φ = 984820.

The previous prime is 1993763. The next prime is 1993829. The reversal of 1993826 is 6283991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1993826.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5840 + ... + 6171.

It is an arithmetic number, because the mean of its divisors is an integer number (378378).

2^1993826 is an apocalyptic number.

1993826 is a deficient number, since it is larger than the sum of its proper divisors (1033198).

1993826 is a wasteful number, since it uses less digits than its factorization.

1993826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12096.

The product of its digits is 23328, while the sum is 38.

The square root of 1993826 is about 1412.0290365286. The cubic root of 1993826 is about 125.8623254786.

The spelling of 1993826 in words is "one million, nine hundred ninety-three thousand, eight hundred twenty-six".