347431 has 4 divisors (see below), whose sum is σ = 397072. Its totient is φ = 297792.

The previous prime is 347411. The next prime is 347437. The reversal of 347431 is 134743.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134743 = 7 ⋅19249.

It is a cyclic number.

It is not a de Polignac number, because 347431 - 2¹³ = 339239 is a prime.

It is a super-2 number, since 2×347431² = 241416599522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347437) 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, 24810 + ... + 24823.

It is an arithmetic number, because the mean of its divisors is an integer number (99268).

2³⁴⁷⁴³¹ is an apocalyptic number.

347431 is a deficient number, since it is larger than the sum of its proper divisors (49641).

347431 is an equidigital number, since it uses as much as digits as its factorization.

347431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49640.

The product of its digits is 1008, while the sum is 22.

The square root of 347431 is about 589.4327781859. The cubic root of 347431 is about 70.3001398191.

The spelling of 347431 in words is "three hundred forty-seven thousand, four hundred thirty-one".