68335648 has 24 divisors (see below), whose sum is σ = 142450812. Its totient is φ = 32157696.

The previous prime is 68335639. The next prime is 68335649. The reversal of 68335648 is 84653386.

It can be written as a sum of positive squares in 2 ways, for example, as 67436944 + 898704 = 8212^2 + 948^2 .

It is a super-3 number, since 3×68335648³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (68335649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62265 + ... + 63352.

Almost surely, 2^68335648 is an apocalyptic number.

68335648 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

68335648 is an abundant number, since it is smaller than the sum of its proper divisors (74115164).

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

68335648 is a wasteful number, since it uses less digits than its factorization.

68335648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125644 (or 125636 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 68335648 is about 8266.5378484587. The cubic root of 68335648 is about 408.8359765775.

The spelling of 68335648 in words is "sixty-eight million, three hundred thirty-five thousand, six hundred forty-eight".