68829686 has 4 divisors (see below), whose sum is σ = 103244532. Its totient is φ = 34414842.

The previous prime is 68829679. The next prime is 68829697. The reversal of 68829686 is 68692886.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17207420 + ... + 17207423.

It is an arithmetic number, because the mean of its divisors is an integer number (25811133).

Almost surely, 2^68829686 is an apocalyptic number.

68829686 is a deficient number, since it is larger than the sum of its proper divisors (34414846).

68829686 is a wasteful number, since it uses less digits than its factorization.

68829686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34414845.

The product of its digits is 1990656, while the sum is 53.

The square root of 68829686 is about 8296.3658308925. The cubic root of 68829686 is about 409.8188491825.

The spelling of 68829686 in words is "sixty-eight million, eight hundred twenty-nine thousand, six hundred eighty-six".