68782686 has 16 divisors (see below), whose sum is σ = 157217664. Its totient is φ = 19652184.

The previous prime is 68782657. The next prime is 68782699. The reversal of 68782686 is 68628786.

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, 818800 + ... + 818883.

It is an arithmetic number, because the mean of its divisors is an integer number (9826104).

Almost surely, 2^68782686 is an apocalyptic number.

68782686 is an abundant number, since it is smaller than the sum of its proper divisors (88434978).

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

68782686 is a wasteful number, since it uses less digits than its factorization.

68782686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637695.

The product of its digits is 1548288, while the sum is 51.

The square root of 68782686 is about 8293.5327816317. The cubic root of 68782686 is about 409.7255470387.

The spelling of 68782686 in words is "sixty-eight million, seven hundred eighty-two thousand, six hundred eighty-six".