648648843 has 8 divisors (see below), whose sum is σ = 865181328. Its totient is φ = 432274464.

The previous prime is 648648839. The next prime is 648648853. The reversal of 648648843 is 348846846.

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

It is not a de Polignac number, because 648648843 - 2² = 648648839 is a prime.

It is not an unprimeable number, because it can be changed into a prime (648648853) 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, 29596 + ... + 46617.

It is an arithmetic number, because the mean of its divisors is an integer number (108147666).

Almost surely, 2^648648843 is an apocalyptic number.

648648843 is a deficient number, since it is larger than the sum of its proper divisors (216532485).

648648843 is a wasteful number, since it uses less digits than its factorization.

648648843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79053.

The product of its digits is 3538944, while the sum is 51.

The square root of 648648843 is about 25468.5854141921. The cubic root of 648648843 is about 865.6384710038.

The spelling of 648648843 in words is "six hundred forty-eight million, six hundred forty-eight thousand, eight hundred forty-three".