540647 has 8 divisors (see below), whose sum is σ = 567840. Its totient is φ = 514080.

The previous prime is 540629. The next prime is 540677. The reversal of 540647 is 746045.

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 540647 - 2⁸ = 540391 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2897 + ... + 3077.

It is an arithmetic number, because the mean of its divisors is an integer number (70980).

2⁵⁴⁰⁶⁴⁷ is an apocalyptic number.

540647 is a deficient number, since it is larger than the sum of its proper divisors (27193).

540647 is a wasteful number, since it uses less digits than its factorization.

540647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 540647 is about 735.2870187893. The cubic root of 540647 is about 81.4650382619.

The spelling of 540647 in words is "five hundred forty thousand, six hundred forty-seven".