542717729 has 16 divisors (see below), whose sum is σ = 598855680. Its totient is φ = 489543120.

The previous prime is 542717723. The next prime is 542717759. The reversal of 542717729 is 927717245.

It is a cyclic number.

It is not a de Polignac number, because 542717729 - 2¹⁶ = 542652193 is a prime.

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 542717729.

It is not an unprimeable number, because it can be changed into a prime (542717723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96464 + ... + 101934.

It is an arithmetic number, because the mean of its divisors is an integer number (37428480).

Almost surely, 2^542717729 is an apocalyptic number.

It is an amenable number.

542717729 is a deficient number, since it is larger than the sum of its proper divisors (56137951).

542717729 is a wasteful number, since it uses less digits than its factorization.

542717729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5740.

The product of its digits is 246960, while the sum is 44.

The square root of 542717729 is about 23296.3029041091. The cubic root of 542717729 is about 815.6891201902.

The spelling of 542717729 in words is "five hundred forty-two million, seven hundred seventeen thousand, seven hundred twenty-nine".