347281 has 8 divisors (see below), whose sum is σ = 383328. Its totient is φ = 312000.

The previous prime is 347257. The next prime is 347287. The reversal of 347281 is 182743.

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 347281 - 2¹⁵ = 314513 is a prime.

It is a super-2 number, since 2×347281² = 241208185922, which contains 22 as substring.

347281 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (347287) 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, 1321 + ... + 1561.

It is an arithmetic number, because the mean of its divisors is an integer number (47916).

2³⁴⁷²⁸¹ is an apocalyptic number.

It is an amenable number.

347281 is a deficient number, since it is larger than the sum of its proper divisors (36047).

347281 is a wasteful number, since it uses less digits than its factorization.

347281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383.

The product of its digits is 1344, while the sum is 25.

The square root of 347281 is about 589.3055234766. The cubic root of 347281 is about 70.2900212259.

It can be divided in two parts, 3472 and 81, that added together give a palindrome (3553).

The spelling of 347281 in words is "three hundred forty-seven thousand, two hundred eighty-one".