648563629 has 8 divisors (see below), whose sum is σ = 751655808. Its totient is φ = 548081520.

The previous prime is 648563623. The next prime is 648563633. The reversal of 648563629 is 926365846.

648563629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 648563629 - 2³ = 648563621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648563621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651982 + ... + 652975.

It is an arithmetic number, because the mean of its divisors is an integer number (93956976).

Almost surely, 2^648563629 is an apocalyptic number.

It is an amenable number.

648563629 is a deficient number, since it is larger than the sum of its proper divisors (103092179).

648563629 is a wasteful number, since it uses less digits than its factorization.

648563629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305035.

The product of its digits is 1866240, while the sum is 49.

The square root of 648563629 is about 25466.9124355506. The cubic root of 648563629 is about 865.6005625895.

The spelling of 648563629 in words is "six hundred forty-eight million, five hundred sixty-three thousand, six hundred twenty-nine".