68636806 has 16 divisors (see below), whose sum is σ = 117916416. Its totient is φ = 29352456.

The previous prime is 68636791. The next prime is 68636819. The reversal of 68636806 is 60863686.

It is a super-2 number, since 2×68636806² = 9422022275763272, which contains 22 as substring.

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, 1785 + ... + 11851.

It is an arithmetic number, because the mean of its divisors is an integer number (7369776).

Almost surely, 2^68636806 is an apocalyptic number.

68636806 is a deficient number, since it is larger than the sum of its proper divisors (49279610).

68636806 is a wasteful number, since it uses less digits than its factorization.

68636806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10563.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 68636806 is about 8284.7333089243. The cubic root of 68636806 is about 409.4356820948.

It can be divided in two parts, 6863680 and 6, that added together give a palindrome (6863686).

The spelling of 68636806 in words is "sixty-eight million, six hundred thirty-six thousand, eight hundred six".