648723528 has 96 divisors (see below), whose sum is σ = 1789444800. Its totient is φ = 212284800.

The previous prime is 648723527. The next prime is 648723557. The reversal of 648723528 is 825327846.

It is not an unprimeable number, because it can be changed into a prime (648723527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1027773 + ... + 1028403.

It is an arithmetic number, because the mean of its divisors is an integer number (18640050).

Almost surely, 2^648723528 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 648723528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894722400).

648723528 is an abundant number, since it is smaller than the sum of its proper divisors (1140721272).

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

648723528 is a wasteful number, since it uses less digits than its factorization.

648723528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 876 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 648723528 is about 25470.0515900538. The cubic root of 648723528 is about 865.6716927430.

The spelling of 648723528 in words is "six hundred forty-eight million, seven hundred twenty-three thousand, five hundred twenty-eight".