1793988 has 90 divisors (see below), whose sum is σ = 5503806. Its totient is φ = 508032.

The previous prime is 1793983. The next prime is 1793989. The reversal of 1793988 is 8893971.

It can be written as a sum of positive squares in only one way, i.e., 1016064 + 777924 = 1008^2 + 882^2 .

It is not an unprimeable number, because it can be changed into a prime (1793983) 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 29 ways as a sum of consecutive naturals, for example, 15820 + ... + 15932.

2^1793988 is an apocalyptic number.

1793988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1793988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2751903).

1793988 is an abundant number, since it is smaller than the sum of its proper divisors (3709818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1793988 is a wasteful number, since it uses less digits than its factorization.

1793988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 125 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 1793988 is about 1339.3983724046. The cubic root of 1793988 is about 121.5084584875.

The spelling of 1793988 in words is "one million, seven hundred ninety-three thousand, nine hundred eighty-eight".