540879 has 8 divisors (see below), whose sum is σ = 746160. Its totient is φ = 348096.

The previous prime is 540877. The next prime is 540901. The reversal of 540879 is 978045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 540879 - 2¹ = 540877 is a prime.

540879 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3022 + ... + 3195.

It is an arithmetic number, because the mean of its divisors is an integer number (93270).

2⁵⁴⁰⁸⁷⁹ is an apocalyptic number.

540879 is a deficient number, since it is larger than the sum of its proper divisors (205281).

540879 is a wasteful number, since it uses less digits than its factorization.

540879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6249.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 540879 is about 735.4447633915. Note that the first 3 decimals coincide. The cubic root of 540879 is about 81.4766892320.

The spelling of 540879 in words is "five hundred forty thousand, eight hundred seventy-nine".