1731996 has 96 divisors (see below), whose sum is σ = 5376000. Its totient is φ = 471744.

The previous prime is 1731991. The next prime is 1732037. The reversal of 1731996 is 6991371.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1731996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1731991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21885 + ... + 21963.

It is an arithmetic number, because the mean of its divisors is an integer number (56000).

2^1731996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1731996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2688000).

1731996 is an abundant number, since it is smaller than the sum of its proper divisors (3644004).

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

1731996 is a wasteful number, since it uses less digits than its factorization.

1731996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 120 counting only the distinct ones).

The product of its digits is 10206, while the sum is 36.

The square root of 1731996 is about 1316.0531904144. The cubic root of 1731996 is about 120.0924287894.

The spelling of 1731996 in words is "one million, seven hundred thirty-one thousand, nine hundred ninety-six".