68076813 has 8 divisors (see below), whose sum is σ = 103736128. Its totient is φ = 38901024.

The previous prime is 68076809. The next prime is 68076839. The reversal of 68076813 is 31867086.

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

It is not a de Polignac number, because 68076813 - 2² = 68076809 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68076863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1620856 + ... + 1620897.

It is an arithmetic number, because the mean of its divisors is an integer number (12967016).

Almost surely, 2^68076813 is an apocalyptic number.

It is an amenable number.

68076813 is a deficient number, since it is larger than the sum of its proper divisors (35659315).

68076813 is a wasteful number, since it uses less digits than its factorization.

68076813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3241763.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 68076813 is about 8250.8674089456. The cubic root of 68076813 is about 408.3191406794.

The spelling of 68076813 in words is "sixty-eight million, seventy-six thousand, eight hundred thirteen".