347389489 has 2 divisors, whose sum is σ = 347389490. Its totient is φ = 347389488.

The previous prime is 347389429. The next prime is 347389501. The reversal of 347389489 is 984983743.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 332697600 + 14691889 = 18240^2 + 3833^2 .

It is a cyclic number.

It is not a de Polignac number, because 347389489 - 2¹⁵ = 347356721 is a prime.

It is a super-2 number, since 2×347389489² = 241358914135362242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (347389429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173694744 + 173694745.

It is an arithmetic number, because the mean of its divisors is an integer number (173694745).

Almost surely, 2^347389489 is an apocalyptic number.

It is an amenable number.

347389489 is a deficient number, since it is larger than the sum of its proper divisors (1).

347389489 is an equidigital number, since it uses as much as digits as its factorization.

347389489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 55.

The square root of 347389489 is about 18638.3875107264. The cubic root of 347389489 is about 702.9733989113.

The spelling of 347389489 in words is "three hundred forty-seven million, three hundred eighty-nine thousand, four hundred eighty-nine".