68390353 has 2 divisors, whose sum is σ = 68390354. Its totient is φ = 68390352.

The previous prime is 68390347. The next prime is 68390401. The reversal of 68390353 is 35309386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68095504 + 294849 = 8252^2 + 543^2 .

It is a cyclic number.

It is not a de Polignac number, because 68390353 - 2⁵ = 68390321 is a prime.

It is not a weakly prime, because it can be changed into another prime (68390053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34195176 + 34195177.

It is an arithmetic number, because the mean of its divisors is an integer number (34195177).

Almost surely, 2^68390353 is an apocalyptic number.

It is an amenable number.

68390353 is a deficient number, since it is larger than the sum of its proper divisors (1).

68390353 is an equidigital number, since it uses as much as digits as its factorization.

68390353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 68390353 is about 8269.8460082398. The cubic root of 68390353 is about 408.9450431595.

The spelling of 68390353 in words is "sixty-eight million, three hundred ninety thousand, three hundred fifty-three".