68213608 has 16 divisors (see below), whose sum is σ = 128145060. Its totient is φ = 34041600.

The previous prime is 68213581. The next prime is 68213611. The reversal of 68213608 is 80631286.

It can be written as a sum of positive squares in 2 ways, for example, as 68194564 + 19044 = 8258^2 + 138^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3553 + ... + 12208.

Almost surely, 2^68213608 is an apocalyptic number.

It is an amenable number.

68213608 is a deficient number, since it is larger than the sum of its proper divisors (59931452).

68213608 is a wasteful number, since it uses less digits than its factorization.

68213608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16308 (or 16304 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 68213608 is about 8259.1529832060. The cubic root of 68213608 is about 408.5924527580.

The spelling of 68213608 in words is "sixty-eight million, two hundred thirteen thousand, six hundred eight".