648368 has 30 divisors (see below), whose sum is σ = 1463076. Its totient is φ = 277536.

The previous prime is 648343. The next prime is 648371. The reversal of 648368 is 863846.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 648368.

It is an unprimeable number.

648368 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 371 + ... + 1197.

2⁶⁴⁸³⁶⁸ 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 648368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731538).

648368 is an abundant number, since it is smaller than the sum of its proper divisors (814708).

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

648368 is a wasteful number, since it uses less digits than its factorization.

648368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 836 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 648368 is about 805.2130152947. The cubic root of 648368 is about 86.5513522247.

The spelling of 648368 in words is "six hundred forty-eight thousand, three hundred sixty-eight".