68684770 has 48 divisors (see below), whose sum is σ = 156904128. Its totient is φ = 21406560.

The previous prime is 68684729. The next prime is 68684797. The reversal of 68684770 is 7748686.

It is a self number, because there is not a number n which added to its sum of digits gives 68684770.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 982 + ... + 11761.

It is an arithmetic number, because the mean of its divisors is an integer number (3268836).

Almost surely, 2^68684770 is an apocalyptic number.

68684770 is an abundant number, since it is smaller than the sum of its proper divisors (88219358).

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

68684770 is a wasteful number, since it uses less digits than its factorization.

68684770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12775 (or 12768 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 68684770 is about 8287.6275254140. The cubic root of 68684770 is about 409.5310322990.

The spelling of 68684770 in words is "sixty-eight million, six hundred eighty-four thousand, seven hundred seventy".