67668008 has 8 divisors (see below), whose sum is σ = 126877530. Its totient is φ = 33834000.

The previous prime is 67667993. The next prime is 67668011. The reversal of 67668008 is 80086676.

It can be written as a sum of positive squares in only one way, i.e., 51523684 + 16144324 = 7178^2 + 4018^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4229243 + ... + 4229258.

Almost surely, 2^67668008 is an apocalyptic number.

It is an amenable number.

67668008 is a deficient number, since it is larger than the sum of its proper divisors (59209522).

67668008 is a wasteful number, since it uses less digits than its factorization.

67668008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8458507 (or 8458503 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 67668008 is about 8226.0566494524. The cubic root of 67668008 is about 407.5001728831.

The spelling of 67668008 in words is "sixty-seven million, six hundred sixty-eight thousand, eight".