1791882 has 28 divisors (see below), whose sum is σ = 4033170. Its totient is φ = 596808.

The previous prime is 1791863. The next prime is 1791883. The reversal of 1791882 is 2881971.

It can be written as a sum of positive squares in only one way, i.e., 998001 + 793881 = 999^2 + 891^2 .

It is a super-2 number, since 2×1791882² = 6421682203848, which contains 22 as substring.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (1791883) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 844 + ... + 2072.

2^1791882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1791882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2016585).

1791882 is an abundant number, since it is smaller than the sum of its proper divisors (2241288).

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

1791882 is an equidigital number, since it uses as much as digits as its factorization.

1791882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249 (or 1234 counting only the distinct ones).

The product of its digits is 8064, while the sum is 36.

The square root of 1791882 is about 1338.6119676740. The cubic root of 1791882 is about 121.4608927637.

The spelling of 1791882 in words is "one million, seven hundred ninety-one thousand, eight hundred eighty-two".