540347 has 2 divisors, whose sum is σ = 540348. Its totient is φ = 540346.

The previous prime is 540343. The next prime is 540349. The reversal of 540347 is 743045.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 540347 - 2² = 540343 is a prime.

Together with 540349, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (540343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270173 + 270174.

It is an arithmetic number, because the mean of its divisors is an integer number (270174).

2⁵⁴⁰³⁴⁷ is an apocalyptic number.

540347 is a deficient number, since it is larger than the sum of its proper divisors (1).

540347 is an equidigital number, since it uses as much as digits as its factorization.

540347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 540347 is about 735.0829885122. The cubic root of 540347 is about 81.4499674095.

The spelling of 540347 in words is "five hundred forty thousand, three hundred forty-seven".