68893768 has 8 divisors (see below), whose sum is σ = 129175830. Its totient is φ = 34446880.

The previous prime is 68893757. The next prime is 68893771. The reversal of 68893768 is 86739886.

It can be written as a sum of positive squares in only one way, i.e., 51236964 + 17656804 = 7158^2 + 4202^2 .

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

It is an unprimeable number.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4305853 + ... + 4305868.

Almost surely, 2^68893768 is an apocalyptic number.

It is an amenable number.

68893768 is a deficient number, since it is larger than the sum of its proper divisors (60282062).

68893768 is a wasteful number, since it uses less digits than its factorization.

68893768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8611727 (or 8611723 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 55.

The square root of 68893768 is about 8300.2269848481. The cubic root of 68893768 is about 409.9459932829.

The spelling of 68893768 in words is "sixty-eight million, eight hundred ninety-three thousand, seven hundred sixty-eight".