347323007561 has 4 divisors (see below), whose sum is σ = 347324946324. Its totient is φ = 347321068800.

The previous prime is 347323007539. The next prime is 347323007569. The reversal of 347323007561 is 165700323743.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40988431936 + 306334575625 = 202456^2 + 553475^2 .

It is a cyclic number.

It is not a de Polignac number, because 347323007561 - 2¹⁴ = 347322991177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (347323007569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669800 + ... + 1069241.

It is an arithmetic number, because the mean of its divisors is an integer number (86831236581).

Almost surely, 2^347323007561 is an apocalyptic number.

It is an amenable number.

347323007561 is a deficient number, since it is larger than the sum of its proper divisors (1938763).

347323007561 is a wasteful number, since it uses less digits than its factorization.

347323007561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938762.

The product of its (nonzero) digits is 317520, while the sum is 41.

The spelling of 347323007561 in words is "three hundred forty-seven billion, three hundred twenty-three million, seven thousand, five hundred sixty-one".