347945 has 16 divisors (see below), whose sum is σ = 462672. Its totient is φ = 249600.

The previous prime is 347933. The next prime is 347951. The reversal of 347945 is 549743.

It can be written as a sum of positive squares in 8 ways, for example, as 6889 + 341056 = 83^2 + 584^2 .

It is not a de Polignac number, because 347945 - 2⁴ = 347929 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3395 + ... + 3495.

It is an arithmetic number, because the mean of its divisors is an integer number (28917).

2³⁴⁷⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

347945 is a deficient number, since it is larger than the sum of its proper divisors (114727).

347945 is a wasteful number, since it uses less digits than its factorization.

347945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172.

The product of its digits is 15120, while the sum is 32.

The square root of 347945 is about 589.8686294422. The cubic root of 347945 is about 70.3347907926.

The spelling of 347945 in words is "three hundred forty-seven thousand, nine hundred forty-five".