540693 has 6 divisors (see below), whose sum is σ = 781014. Its totient is φ = 360456.

The previous prime is 540691. The next prime is 540697. The reversal of 540693 is 396045.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 439569 + 101124 = 663^2 + 318^2 .

It is not a de Polignac number, because 540693 - 2¹ = 540691 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 540693.

It is not an unprimeable number, because it can be changed into a prime (540691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30030 + ... + 30047.

It is an arithmetic number, because the mean of its divisors is an integer number (130169).

2⁵⁴⁰⁶⁹³ is an apocalyptic number.

It is an amenable number.

540693 is a deficient number, since it is larger than the sum of its proper divisors (240321).

540693 is a wasteful number, since it uses less digits than its factorization.

540693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60083 (or 60080 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 540693 is about 735.3182984259. The cubic root of 540693 is about 81.4673486329.

The spelling of 540693 in words is "five hundred forty thousand, six hundred ninety-three".