542818847 has 4 divisors (see below), whose sum is σ = 571388280. Its totient is φ = 514249416.

The previous prime is 542818841. The next prime is 542818849. The reversal of 542818847 is 748818245.

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 542818847 - 2⁴ = 542818831 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 (542818841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14284688 + ... + 14284725.

It is an arithmetic number, because the mean of its divisors is an integer number (142847070).

Almost surely, 2^542818847 is an apocalyptic number.

542818847 is a deficient number, since it is larger than the sum of its proper divisors (28569433).

542818847 is a wasteful number, since it uses less digits than its factorization.

542818847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28569432.

The product of its digits is 573440, while the sum is 47.

The square root of 542818847 is about 23298.4730615549. The cubic root of 542818847 is about 815.7397761917.

The spelling of 542818847 in words is "five hundred forty-two million, eight hundred eighteen thousand, eight hundred forty-seven".