68682920 has 32 divisors (see below), whose sum is σ = 154811520. Its totient is φ = 27424320.

The previous prime is 68682919. The next prime is 68682923. The reversal of 68682920 is 2928686.

It is not an unprimeable number, because it can be changed into a prime (68682923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28565 + ... + 30875.

It is an arithmetic number, because the mean of its divisors is an integer number (4837860).

Almost surely, 2^68682920 is an apocalyptic number.

It is an amenable number.

68682920 is an abundant number, since it is smaller than the sum of its proper divisors (86128600).

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

68682920 is a wasteful number, since it uses less digits than its factorization.

68682920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065 (or 3061 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 68682920 is about 8287.5159125036. The cubic root of 68682920 is about 409.5273554081.

The spelling of 68682920 in words is "sixty-eight million, six hundred eighty-two thousand, nine hundred twenty".