648593088 has 112 divisors (see below), whose sum is σ = 2016166656. Its totient is φ = 181416960.

The previous prime is 648593003. The next prime is 648593093. The reversal of 648593088 is 880395846.

It is a self number, because there is not a number n which added to its sum of digits gives 648593088.

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, 15645 + ... + 39267.

It is an arithmetic number, because the mean of its divisors is an integer number (18001488).

Almost surely, 2^648593088 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 648593088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1008083328).

648593088 is an abundant number, since it is smaller than the sum of its proper divisors (1367573568).

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

648593088 is a wasteful number, since it uses less digits than its factorization.

648593088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23662 (or 23652 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The square root of 648593088 is about 25467.4908069091. The cubic root of 648593088 is about 865.6136681353.

The spelling of 648593088 in words is "six hundred forty-eight million, five hundred ninety-three thousand, eighty-eight".