540847 has 4 divisors (see below), whose sum is σ = 542376. Its totient is φ = 539320.

The previous prime is 540823. The next prime is 540851. The reversal of 540847 is 748045.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 540847 - 2¹¹ = 538799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540877) 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, 72 + ... + 1042.

It is an arithmetic number, because the mean of its divisors is an integer number (135594).

2⁵⁴⁰⁸⁴⁷ is an apocalyptic number.

540847 is a deficient number, since it is larger than the sum of its proper divisors (1529).

540847 is an equidigital number, since it uses as much as digits as its factorization.

540847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 540847 is about 735.4230075270. The cubic root of 540847 is about 81.4750823997.

The spelling of 540847 in words is "five hundred forty thousand, eight hundred forty-seven".