68780708 has 24 divisors (see below), whose sum is σ = 127740312. Its totient is φ = 32292864.

The previous prime is 68780687. The next prime is 68780711. The reversal of 68780708 is 80708786.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20866624 + 47914084 = 4568^2 + 6922^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38360 + ... + 40112.

It is an arithmetic number, because the mean of its divisors is an integer number (5322513).

Almost surely, 2^68780708 is an apocalyptic number.

68780708 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

68780708 is a deficient number, since it is larger than the sum of its proper divisors (58959604).

68780708 is a wasteful number, since it uses less digits than its factorization.

68780708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351 (or 2349 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 68780708 is about 8293.4135312307. The cubic root of 68780708 is about 409.7216194762.

The spelling of 68780708 in words is "sixty-eight million, seven hundred eighty thousand, seven hundred eight".