974593728 has 84 divisors (see below), whose sum is σ = 2868945240. Its totient is φ = 324432000.

The previous prime is 974593723. The next prime is 974593747. The reversal of 974593728 is 827395479.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (3810240) is a multiple of the sum of its prime divisors (756).

It is not an unprimeable number, because it can be changed into a prime (974593723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1297353 + ... + 1298103.

It is an arithmetic number, because the mean of its divisors is an integer number (34154110).

Almost surely, 2^974593728 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 974593728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1434472620).

974593728 is an abundant number, since it is smaller than the sum of its proper divisors (1894351512).

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

974593728 is an frugal number, since it uses more digits than its factorization.

974593728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523 (or 756 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 974593728 is about 31218.4837556214. The cubic root of 974593728 is about 991.4584930475.

The spelling of 974593728 in words is "nine hundred seventy-four million, five hundred ninety-three thousand, seven hundred twenty-eight".