347408 has 10 divisors (see below), whose sum is σ = 673134. Its totient is φ = 173696.

The previous prime is 347401. The next prime is 347411. The reversal of 347408 is 804743.

It can be written as a sum of positive squares in only one way, i.e., 262144 + 85264 = 512^2 + 292^2 .

It is not an unprimeable number, because it can be changed into a prime (347401) by changing a digit.

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, 10841 + ... + 10872.

2³⁴⁷⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

347408 is a deficient number, since it is larger than the sum of its proper divisors (325726).

347408 is a wasteful number, since it uses less digits than its factorization.

347408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21721 (or 21715 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 347408 is about 589.4132675806. The cubic root of 347408 is about 70.2985884906.

The spelling of 347408 in words is "three hundred forty-seven thousand, four hundred eight".