1793993 has 4 divisors (see below), whose sum is σ = 1899540. Its totient is φ = 1688448.

The previous prime is 1793989. The next prime is 1794007. The reversal of 1793993 is 3993971.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3993971 = 19 ⋅210209.

It can be written as a sum of positive squares in 2 ways, for example, as 644809 + 1149184 = 803^2 + 1072^2 .

It is a cyclic number.

It is not a de Polignac number, because 1793993 - 2² = 1793989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1793993.

It is not an unprimeable number, because it can be changed into a prime (1793963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52748 + ... + 52781.

It is an arithmetic number, because the mean of its divisors is an integer number (474885).

2^1793993 is an apocalyptic number.

It is an amenable number.

1793993 is a deficient number, since it is larger than the sum of its proper divisors (105547).

1793993 is a wasteful number, since it uses less digits than its factorization.

1793993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105546.

The product of its digits is 45927, while the sum is 41.

The square root of 1793993 is about 1339.4002389129. The cubic root of 1793993 is about 121.5085713723.

The spelling of 1793993 in words is "one million, seven hundred ninety-three thousand, nine hundred ninety-three".