1993118 has 8 divisors (see below), whose sum is σ = 3046248. Its totient is φ = 977704.

The previous prime is 1993109. The next prime is 1993127. The reversal of 1993118 is 8113991.

It is an interprime number because it is at equal distance from previous prime (1993109) and next prime (1993127).

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

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 9296 + ... + 9507.

It is an arithmetic number, because the mean of its divisors is an integer number (380781).

2^1993118 is an apocalyptic number.

1993118 is a deficient number, since it is larger than the sum of its proper divisors (1053130).

1993118 is a wasteful number, since it uses less digits than its factorization.

1993118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18858.

The product of its digits is 1944, while the sum is 32.

The square root of 1993118 is about 1411.7783112090. The cubic root of 1993118 is about 125.8474259711.

The spelling of 1993118 in words is "one million, nine hundred ninety-three thousand, one hundred eighteen".