1789172 has 48 divisors (see below), whose sum is σ = 4034688. Its totient is φ = 673920.

The previous prime is 1789169. The next prime is 1789181. The reversal of 1789172 is 2719871.

It is a super-2 number, since 2×1789172² = 6402272891168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11318 + ... + 11474.

It is an arithmetic number, because the mean of its divisors is an integer number (84056).

2^1789172 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 1789172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2017344).

1789172 is an abundant number, since it is smaller than the sum of its proper divisors (2245516).

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

1789172 is a wasteful number, since it uses less digits than its factorization.

1789172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 214 counting only the distinct ones).

The product of its digits is 7056, while the sum is 35.

The square root of 1789172 is about 1337.5993421051. The cubic root of 1789172 is about 121.3996303412.

The spelling of 1789172 in words is "one million, seven hundred eighty-nine thousand, one hundred seventy-two".