346345589 has 2 divisors, whose sum is σ = 346345590. Its totient is φ = 346345588.

The previous prime is 346345541. The next prime is 346345621. The reversal of 346345589 is 985543643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 261889489 + 84456100 = 16183^2 + 9190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-346345589 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346045589) 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, 173172794 + 173172795.

It is an arithmetic number, because the mean of its divisors is an integer number (173172795).

Almost surely, 2^346345589 is an apocalyptic number.

It is an amenable number.

346345589 is a deficient number, since it is larger than the sum of its proper divisors (1).

346345589 is an equidigital number, since it uses as much as digits as its factorization.

346345589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 47.

The square root of 346345589 is about 18610.3624091526. The cubic root of 346345589 is about 702.2685510511.

The spelling of 346345589 in words is "three hundred forty-six million, three hundred forty-five thousand, five hundred eighty-nine".