648716088 has 64 divisors (see below), whose sum is σ = 1714521600. Its totient is φ = 203973120.

The previous prime is 648716071. The next prime is 648716093. The reversal of 648716088 is 880617846.

It is a congruent number.

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, 106945 + ... + 112847.

It is an arithmetic number, because the mean of its divisors is an integer number (26789400).

Almost surely, 2^648716088 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 648716088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (857260800).

648716088 is an abundant number, since it is smaller than the sum of its proper divisors (1065805512).

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

648716088 is a wasteful number, since it uses less digits than its factorization.

648716088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172 (or 6168 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 648716088 is about 25469.9055357494. The cubic root of 648716088 is about 865.6683833609.

The spelling of 648716088 in words is "six hundred forty-eight million, seven hundred sixteen thousand, eighty-eight".