68940886 has 16 divisors (see below), whose sum is σ = 118298880. Its totient is φ = 29517480.

The previous prime is 68940881. The next prime is 68940889. The reversal of 68940886 is 68804986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68940881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19525 + ... + 22783.

It is an arithmetic number, because the mean of its divisors is an integer number (7393680).

Almost surely, 2^68940886 is an apocalyptic number.

68940886 is a deficient number, since it is larger than the sum of its proper divisors (49357994).

68940886 is a wasteful number, since it uses less digits than its factorization.

68940886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4779.

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 68940886 is about 8303.0648558228. The cubic root of 68940886 is about 410.0394290853.

The spelling of 68940886 in words is "sixty-eight million, nine hundred forty thousand, eight hundred eighty-six".