540287879 has 4 divisors (see below), whose sum is σ = 540661176. Its totient is φ = 539914584.

The previous prime is 540287861. The next prime is 540287887. The reversal of 540287879 is 978782045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 540287879 - 2¹⁶ = 540222343 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 (540287849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184469 + ... + 187374.

It is an arithmetic number, because the mean of its divisors is an integer number (135165294).

Almost surely, 2^540287879 is an apocalyptic number.

540287879 is a deficient number, since it is larger than the sum of its proper divisors (373297).

540287879 is a wasteful number, since it uses less digits than its factorization.

540287879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373296.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The square root of 540287879 is about 23244.0934217706. The cubic root of 540287879 is about 814.4699673875.

The spelling of 540287879 in words is "five hundred forty million, two hundred eighty-seven thousand, eight hundred seventy-nine".