67006688 has 24 divisors (see below), whose sum is σ = 150765552. Its totient is φ = 28717056.

The previous prime is 67006679. The next prime is 67006691. The reversal of 67006688 is 88660076.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149345 + ... + 149792.

It is an arithmetic number, because the mean of its divisors is an integer number (6281898).

Almost surely, 2^67006688 is an apocalyptic number.

It is an amenable number.

67006688 is an abundant number, since it is smaller than the sum of its proper divisors (83758864).

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

67006688 is a wasteful number, since it uses less digits than its factorization.

67006688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299154 (or 299146 counting only the distinct ones).

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

The square root of 67006688 is about 8185.7612962998. The cubic root of 67006688 is about 406.1683238405.

The spelling of 67006688 in words is "sixty-seven million, six thousand, six hundred eighty-eight".