648682648 has 32 divisors (see below), whose sum is σ = 1311534000. Its totient is φ = 299773440.

The previous prime is 648682633. The next prime is 648682663. The reversal of 648682648 is 846286846.

It is an interprime number because it is at equal distance from previous prime (648682633) and next prime (648682663).

It is a junction number, because it is equal to n+sod(n) for n = 648682595 and 648682604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45813 + ... + 58276.

Almost surely, 2^648682648 is an apocalyptic number.

It is an amenable number.

648682648 is an abundant number, since it is smaller than the sum of its proper divisors (662851352).

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

648682648 is a wasteful number, since it uses less digits than its factorization.

648682648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104155 (or 104151 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 52.

The square root of 648682648 is about 25469.2490662760. The cubic root of 648682648 is about 865.6535086216.

The spelling of 648682648 in words is "six hundred forty-eight million, six hundred eighty-two thousand, six hundred forty-eight".