336405217 has 2 divisors, whose sum is σ = 336405218. Its totient is φ = 336405216.

The previous prime is 336405187. The next prime is 336405227. The reversal of 336405217 is 712504633.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 306985441 + 29419776 = 17521^2 + 5424^2 .

It is a cyclic number.

It is not a de Polignac number, because 336405217 - 2¹¹ = 336403169 is a prime.

It is a super-2 number, since 2×336405217² = 226336940049634178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (336405227) 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 as a sum of consecutive naturals, namely, 168202608 + 168202609.

It is an arithmetic number, because the mean of its divisors is an integer number (168202609).

Almost surely, 2^336405217 is an apocalyptic number.

It is an amenable number.

336405217 is a deficient number, since it is larger than the sum of its proper divisors (1).

336405217 is an equidigital number, since it uses as much as digits as its factorization.

336405217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 336405217 is about 18341.3526491369. The cubic root of 336405217 is about 695.4846899359.

The spelling of 336405217 in words is "three hundred thirty-six million, four hundred five thousand, two hundred seventeen".