68675408 has 10 divisors (see below), whose sum is σ = 133058634. Its totient is φ = 34337696.

The previous prime is 68675381. The next prime is 68675417. The reversal of 68675408 is 80457686.

It can be written as a sum of positive squares in only one way, i.e., 44782864 + 23892544 = 6692^2 + 4888^2 .

It is a super-3 number, since 3×68675408³ (a number of 24 digits) contains 333 as substring.

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 as a sum of consecutive naturals, namely, 2146091 + ... + 2146122.

Almost surely, 2^68675408 is an apocalyptic number.

It is an amenable number.

68675408 is a deficient number, since it is larger than the sum of its proper divisors (64383226).

68675408 is a wasteful number, since it uses less digits than its factorization.

68675408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292221 (or 4292215 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 68675408 is about 8287.0626883112. The cubic root of 68675408 is about 409.5124245652.

The spelling of 68675408 in words is "sixty-eight million, six hundred seventy-five thousand, four hundred eight".