540786689 has 8 divisors (see below), whose sum is σ = 543797760. Its totient is φ = 537784416.

The previous prime is 540786641. The next prime is 540786713. The reversal of 540786689 is 986687045.

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 540786689 - 2²⁰ = 539738113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 540786689.

It is not an unprimeable number, because it can be changed into a prime (540786629) 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, 148124 + ... + 151730.

It is an arithmetic number, because the mean of its divisors is an integer number (67974720).

Almost surely, 2^540786689 is an apocalyptic number.

It is an amenable number.

540786689 is a deficient number, since it is larger than the sum of its proper divisors (3011071).

540786689 is a wasteful number, since it uses less digits than its factorization.

540786689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4399.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The square root of 540786689 is about 23254.8207690363. The cubic root of 540786689 is about 814.7205380053.

The spelling of 540786689 in words is "five hundred forty million, seven hundred eighty-six thousand, six hundred eighty-nine".