68803813 has 8 divisors (see below), whose sum is σ = 74407256. Its totient is φ = 63244800.

The previous prime is 68803793. The next prime is 68803829. The reversal of 68803813 is 31830886.

It can be written as a sum of positive squares in 4 ways, for example, as 14884164 + 53919649 = 3858^2 + 7343^2 .

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 68803813 - 2¹³ = 68795621 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 (68803843) 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, 7848 + ... + 14113.

It is an arithmetic number, because the mean of its divisors is an integer number (9300907).

Almost surely, 2^68803813 is an apocalyptic number.

It is an amenable number.

68803813 is a deficient number, since it is larger than the sum of its proper divisors (5603443).

68803813 is a wasteful number, since it uses less digits than its factorization.

68803813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22215.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 68803813 is about 8294.8063871316. The cubic root of 68803813 is about 409.7674926019.

The spelling of 68803813 in words is "sixty-eight million, eight hundred three thousand, eight hundred thirteen".