68816683 has 8 divisors (see below), whose sum is σ = 76501376. Its totient is φ = 61473600.

The previous prime is 68816647. The next prime is 68816687. The reversal of 68816683 is 38661886.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68816683 - 2¹⁷ = 68685611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68816687) 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, 84978 + ... + 85783.

It is an arithmetic number, because the mean of its divisors is an integer number (9562672).

Almost surely, 2^68816683 is an apocalyptic number.

68816683 is a deficient number, since it is larger than the sum of its proper divisors (7684693).

68816683 is a wasteful number, since it uses less digits than its factorization.

68816683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170805.

The product of its digits is 331776, while the sum is 46.

The square root of 68816683 is about 8295.5821374995. The cubic root of 68816683 is about 409.7930405021.

It can be divided in two parts, 688 and 16683, that added together give a palindrome (17371).

The spelling of 68816683 in words is "sixty-eight million, eight hundred sixteen thousand, six hundred eighty-three".