68648 has 8 divisors (see below), whose sum is σ = 128730. Its totient is φ = 34320.

The previous prime is 68639. The next prime is 68659. The reversal of 68648 is 84686.

It can be written as a sum of positive squares in only one way, i.e., 68644 + 4 = 262^2 + 2^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 6⁴ + 8 + 6⁴ + 4⁸ + 8³ .

It is a plaindrome in base 12.

It is a zygodrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 68648.

It is an unprimeable number.

68648 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4283 + ... + 4298.

2⁶⁸⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

68648 is a deficient number, since it is larger than the sum of its proper divisors (60082).

68648 is a wasteful number, since it uses less digits than its factorization.

68648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8587 (or 8583 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 68648 is about 262.0076334766. The cubic root of 68648 is about 40.9457939220.

The spelling of 68648 in words is "sixty-eight thousand, six hundred forty-eight".