353421017 has 2 divisors, whose sum is σ = 353421018. Its totient is φ = 353421016.

The previous prime is 353420993. The next prime is 353421023. The reversal of 353421017 is 710124353.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318658201 + 34762816 = 17851^2 + 5896^2 .

It is an emirp because it is prime and its reverse (710124353) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 353421017 - 2⁶ = 353420953 is a prime.

It is not a weakly prime, because it can be changed into another prime (353421037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176710508 + 176710509.

It is an arithmetic number, because the mean of its divisors is an integer number (176710509).

Almost surely, 2^353421017 is an apocalyptic number.

It is an amenable number.

353421017 is a deficient number, since it is larger than the sum of its proper divisors (1).

353421017 is an equidigital number, since it uses as much as digits as its factorization.

353421017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 353421017 is about 18799.4951261995. The cubic root of 353421017 is about 707.0185211083.

Subtracting from 353421017 its sum of digits (26), we obtain a triangular number (353420991 = T₂₆₅₈₆).

The spelling of 353421017 in words is "three hundred fifty-three million, four hundred twenty-one thousand, seventeen".