7173072 has 60 divisors (see below), whose sum is σ = 20303140. Its totient is φ = 2363904.

The previous prime is 7173071. The next prime is 7173083. The reversal of 7173072 is 2703717.

It can be written as a sum of positive squares in 2 ways, for example, as 5645376 + 1527696 = 2376^2 + 1236^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7173071) 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 11 ways as a sum of consecutive naturals, for example, 15468 + ... + 15924.

Almost surely, 2^7173072 is an apocalyptic number.

7173072 is a gapful number since it is divisible by the number (72) 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 7173072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10151570).

7173072 is an abundant number, since it is smaller than the sum of its proper divisors (13130068).

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

7173072 is a wasteful number, since it uses less digits than its factorization.

7173072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 2058, while the sum is 27.

The square root of 7173072 is about 2678.2591360807. The cubic root of 7173072 is about 192.8568475010.

Adding to 7173072 its reverse (2703717), we get a palindrome (9876789).

The spelling of 7173072 in words is "seven million, one hundred seventy-three thousand, seventy-two".