68836668 has 24 divisors (see below), whose sum is σ = 160927872. Its totient is φ = 22901424.

The previous prime is 68836643. The next prime is 68836673. The reversal of 68836668 is 86663886.

It is a super-2 number, since 2×68836668² = 9476973722684448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68836668.

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 in 7 ways as a sum of consecutive naturals, for example, 1321 + ... + 11807.

It is an arithmetic number, because the mean of its divisors is an integer number (6705328).

Almost surely, 2^68836668 is an apocalyptic number.

It is an amenable number.

68836668 is an abundant number, since it is smaller than the sum of its proper divisors (92091204).

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

68836668 is a wasteful number, since it uses less digits than its factorization.

68836668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11041 (or 11039 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The square root of 68836668 is about 8296.7866068738. The cubic root of 68836668 is about 409.8327058899.

The spelling of 68836668 in words is "sixty-eight million, eight hundred thirty-six thousand, six hundred sixty-eight".