346296389 has 2 divisors, whose sum is σ = 346296390. Its totient is φ = 346296388.

The previous prime is 346296383. The next prime is 346296397. The reversal of 346296389 is 983692643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326091364 + 20205025 = 18058^2 + 4495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-346296389 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346296383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173148194 + 173148195.

It is an arithmetic number, because the mean of its divisors is an integer number (173148195).

Almost surely, 2^346296389 is an apocalyptic number.

It is an amenable number.

346296389 is a deficient number, since it is larger than the sum of its proper divisors (1).

346296389 is an equidigital number, since it uses as much as digits as its factorization.

346296389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 50.

The square root of 346296389 is about 18609.0405179848. The cubic root of 346296389 is about 702.2352959730.

The spelling of 346296389 in words is "three hundred forty-six million, two hundred ninety-six thousand, three hundred eighty-nine".