346564217 has 2 divisors, whose sum is σ = 346564218. Its totient is φ = 346564216.

The previous prime is 346564201. The next prime is 346564247. The reversal of 346564217 is 712465643.

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., 202179961 + 144384256 = 14219^2 + 12016^2 .

It is a cyclic number.

It is not a de Polignac number, because 346564217 - 2⁴ = 346564201 is a prime.

It is not a weakly prime, because it can be changed into another prime (346564247) 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, 173282108 + 173282109.

It is an arithmetic number, because the mean of its divisors is an integer number (173282109).

Almost surely, 2^346564217 is an apocalyptic number.

It is an amenable number.

346564217 is a deficient number, since it is larger than the sum of its proper divisors (1).

346564217 is an equidigital number, since it uses as much as digits as its factorization.

346564217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 38.

The square root of 346564217 is about 18616.2353068498. The cubic root of 346564217 is about 702.4162871842.

The spelling of 346564217 in words is "three hundred forty-six million, five hundred sixty-four thousand, two hundred seventeen".