648617588 has 24 divisors (see below), whose sum is σ = 1173924864. Its totient is φ = 313250400.

The previous prime is 648617579. The next prime is 648617597. The reversal of 648617588 is 885716846.

648617588 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (648617579) and next prime (648617597).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64373 + ... + 73763.

It is an arithmetic number, because the mean of its divisors is an integer number (48913536).

Almost surely, 2^648617588 is an apocalyptic number.

It is an amenable number.

648617588 is a deficient number, since it is larger than the sum of its proper divisors (525307276).

648617588 is a wasteful number, since it uses less digits than its factorization.

648617588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9983 (or 9981 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 53.

The square root of 648617588 is about 25467.9718077432. The cubic root of 648617588 is about 865.6245672482.

The spelling of 648617588 in words is "six hundred forty-eight million, six hundred seventeen thousand, five hundred eighty-eight".