68168677 has 4 divisors (see below), whose sum is σ = 68231916. Its totient is φ = 68105440.

The previous prime is 68168671. The next prime is 68168687. The reversal of 68168677 is 77686186.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40564161 + 27604516 = 6369^2 + 5254^2 .

It is a cyclic number.

It is not a de Polignac number, because 68168677 - 2³ = 68168669 is a prime.

It is a super-3 number, since 3×68168677³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68168677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68168671) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 29974 + ... + 32167.

It is an arithmetic number, because the mean of its divisors is an integer number (17057979).

Almost surely, 2^68168677 is an apocalyptic number.

It is an amenable number.

68168677 is a deficient number, since it is larger than the sum of its proper divisors (63239).

68168677 is a wasteful number, since it uses less digits than its factorization.

68168677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63238.

The product of its digits is 677376, while the sum is 49.

The square root of 68168677 is about 8256.4324620262. The cubic root of 68168677 is about 408.5027223738.

The spelling of 68168677 in words is "sixty-eight million, one hundred sixty-eight thousand, six hundred seventy-seven".