347984720609 has 16 divisors (see below), whose sum is σ = 354673319760. Its totient is φ = 341360870400.

The previous prime is 347984720591. The next prime is 347984720617. The reversal of 347984720609 is 906027489743.

It can be written as a sum of positive squares in 8 ways, for example, as 20997459025 + 326987261584 = 144905^2 + 571828^2 .

It is a cyclic number.

It is not a de Polignac number, because 347984720609 - 2⁸ = 347984720353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (347984720309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23171387 + ... + 23186399.

It is an arithmetic number, because the mean of its divisors is an integer number (22167082485).

Almost surely, 2^347984720609 is an apocalyptic number.

It is an amenable number.

347984720609 is a deficient number, since it is larger than the sum of its proper divisors (6688599151).

347984720609 is a wasteful number, since it uses less digits than its factorization.

347984720609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17140.

The product of its (nonzero) digits is 18289152, while the sum is 59.

The spelling of 347984720609 in words is "three hundred forty-seven billion, nine hundred eighty-four million, seven hundred twenty thousand, six hundred nine".