68680408 has 32 divisors (see below), whose sum is σ = 136836000. Its totient is φ = 32205312.

The previous prime is 68680397. The next prime is 68680433. The reversal of 68680408 is 80408686.

It is a happy number.

It is a congruent number.

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, 46741 + ... + 48187.

It is an arithmetic number, because the mean of its divisors is an integer number (4276125).

Almost surely, 2^68680408 is an apocalyptic number.

68680408 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

68680408 is a deficient number, since it is larger than the sum of its proper divisors (68155592).

68680408 is a wasteful number, since it uses less digits than its factorization.

68680408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819 (or 1815 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 68680408 is about 8287.3643578643. The cubic root of 68680408 is about 409.5223626809.

The spelling of 68680408 in words is "sixty-eight million, six hundred eighty thousand, four hundred eight".