68684812 has 24 divisors (see below), whose sum is σ = 139112960. Its totient is φ = 29062800.

The previous prime is 68684801. The next prime is 68684821. The reversal of 68684812 is 21848686.

It is an unprimeable number.

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, 13314 + ... + 17737.

Almost surely, 2^68684812 is an apocalyptic number.

It is an amenable number.

68684812 is an abundant number, since it is smaller than the sum of its proper divisors (70428148).

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

68684812 is a wasteful number, since it uses less digits than its factorization.

68684812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31141 (or 31139 counting only the distinct ones).

The product of its digits is 147456, while the sum is 43.

The square root of 68684812 is about 8287.6300593113. The cubic root of 68684812 is about 409.5311157736.

It can be divided in two parts, 68684 and 812, that added together give a palindrome (69496).

The spelling of 68684812 in words is "sixty-eight million, six hundred eighty-four thousand, eight hundred twelve".