347216 has 10 divisors (see below), whose sum is σ = 672762. Its totient is φ = 173600.

The previous prime is 347209. The next prime is 347227. The reversal of 347216 is 612743.

It can be written as a sum of positive squares in only one way, i.e., 336400 + 10816 = 580^2 + 104^2 .

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 347191 and 347200.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 347216.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10835 + ... + 10866.

2³⁴⁷²¹⁶ is an apocalyptic number.

It is an amenable number.

347216 is a deficient number, since it is larger than the sum of its proper divisors (325546).

347216 is a wasteful number, since it uses less digits than its factorization.

347216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21709 (or 21703 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 347216 is about 589.2503712345. The cubic root of 347216 is about 70.2856355973.

Adding to 347216 its reverse (612743), we get a palindrome (959959).

The spelling of 347216 in words is "three hundred forty-seven thousand, two hundred sixteen".