1993673 has 4 divisors (see below), whose sum is σ = 2174928. Its totient is φ = 1812420.

The previous prime is 1993661. The next prime is 1993679. The reversal of 1993673 is 3763991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1993673 - 2⁴ = 1993657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1993679) 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, 90611 + ... + 90632.

It is an arithmetic number, because the mean of its divisors is an integer number (543732).

2^1993673 is an apocalyptic number.

It is an amenable number.

1993673 is a deficient number, since it is larger than the sum of its proper divisors (181255).

1993673 is a wasteful number, since it uses less digits than its factorization.

1993673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181254.

The product of its digits is 30618, while the sum is 38.

The square root of 1993673 is about 1411.9748581331. The cubic root of 1993673 is about 125.8591059686.

The spelling of 1993673 in words is "one million, nine hundred ninety-three thousand, six hundred seventy-three".