1173728 has 24 divisors (see below), whose sum is σ = 2367288. Its totient is φ = 572544.

The previous prime is 1173709. The next prime is 1173743. The reversal of 1173728 is 8273711.

It is a self number, because there is not a number n which added to its sum of digits gives 1173728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 950 + ... + 1802.

It is an arithmetic number, because the mean of its divisors is an integer number (98637).

2^1173728 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 1173728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1183644).

1173728 is an abundant number, since it is smaller than the sum of its proper divisors (1193560).

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

1173728 is an equidigital number, since it uses as much as digits as its factorization.

1173728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 898 counting only the distinct ones).

The product of its digits is 2352, while the sum is 29.

The square root of 1173728 is about 1083.3872807081. The cubic root of 1173728 is about 105.4846229919.

The spelling of 1173728 in words is "one million, one hundred seventy-three thousand, seven hundred twenty-eight".