347457061321 has 8 divisors (see below), whose sum is σ = 348031277640. Its totient is φ = 346883203968.

The previous prime is 347457061267. The next prime is 347457061361. The reversal of 347457061321 is 123160754743.

It can be written as a sum of positive squares in 4 ways, for example, as 304218433600 + 43238627721 = 551560^2 + 207939^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 347457061321 - 2¹³ = 347457053129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (347457061361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1883415 + ... + 2059651.

It is an arithmetic number, because the mean of its divisors is an integer number (43503909705).

Almost surely, 2^347457061321 is an apocalyptic number.

It is an amenable number.

347457061321 is a deficient number, since it is larger than the sum of its proper divisors (574216319).

347457061321 is a wasteful number, since it uses less digits than its factorization.

347457061321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179483.

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 347457061321 in words is "three hundred forty-seven billion, four hundred fifty-seven million, sixty-one thousand, three hundred twenty-one".