347140609 has 2 divisors, whose sum is σ = 347140610. Its totient is φ = 347140608.

The previous prime is 347140603. The next prime is 347140613. The reversal of 347140609 is 906041743.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304851600 + 42289009 = 17460^2 + 6503^2 .

It is a cyclic number.

It is not a de Polignac number, because 347140609 - 2⁹ = 347140097 is a prime.

It is a super-4 number, since 4×347140609⁴ (a number of 35 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (347140603) 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, 173570304 + 173570305.

It is an arithmetic number, because the mean of its divisors is an integer number (173570305).

Almost surely, 2^347140609 is an apocalyptic number.

It is an amenable number.

347140609 is a deficient number, since it is larger than the sum of its proper divisors (1).

347140609 is an equidigital number, since it uses as much as digits as its factorization.

347140609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 347140609 is about 18631.7097712475. The cubic root of 347140609 is about 702.8054818970.

The spelling of 347140609 in words is "three hundred forty-seven million, one hundred forty thousand, six hundred nine".