68810353 has 2 divisors, whose sum is σ = 68810354. Its totient is φ = 68810352.

The previous prime is 68810351. The next prime is 68810369. The reversal of 68810353 is 35301886.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64513024 + 4297329 = 8032^2 + 2073^2 .

It is a cyclic number.

It is not a de Polignac number, because 68810353 - 2¹ = 68810351 is a prime.

Together with 68810351, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (68810351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34405176 + 34405177.

It is an arithmetic number, because the mean of its divisors is an integer number (34405177).

Almost surely, 2^68810353 is an apocalyptic number.

It is an amenable number.

68810353 is a deficient number, since it is larger than the sum of its proper divisors (1).

68810353 is an equidigital number, since it uses as much as digits as its factorization.

68810353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 68810353 is about 8295.2006003472. The cubic root of 68810353 is about 409.7804753829.

The spelling of 68810353 in words is "sixty-eight million, eight hundred ten thousand, three hundred fifty-three".