347449 has 4 divisors (see below), whose sum is σ = 359460. Its totient is φ = 335440.

The previous prime is 347443. The next prime is 347489. The reversal of 347449 is 944743.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 944743 = 349 ⋅2707.

It can be written as a sum of positive squares in 2 ways, for example, as 275625 + 71824 = 525^2 + 268^2 .

It is a cyclic number.

It is not a de Polignac number, because 347449 - 2¹³ = 339257 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

347449 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 347449.

It is not an unprimeable number, because it can be changed into a prime (347443) 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, 5962 + ... + 6019.

It is an arithmetic number, because the mean of its divisors is an integer number (89865).

2³⁴⁷⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

347449 is a deficient number, since it is larger than the sum of its proper divisors (12011).

347449 is a wasteful number, since it uses less digits than its factorization.

347449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12010.

The product of its digits is 12096, while the sum is 31.

The square root of 347449 is about 589.4480469049. The cubic root of 347449 is about 70.3013538546.

The spelling of 347449 in words is "three hundred forty-seven thousand, four hundred forty-nine".