542747 has 2 divisors, whose sum is σ = 542748. Its totient is φ = 542746.

The previous prime is 542723. The next prime is 542761. The reversal of 542747 is 747245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542747 - 2⁶ = 542683 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 542747.

It is not a weakly prime, because it can be changed into another prime (542797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271373 + 271374.

It is an arithmetic number, because the mean of its divisors is an integer number (271374).

2⁵⁴²⁷⁴⁷ is an apocalyptic number.

542747 is a deficient number, since it is larger than the sum of its proper divisors (1).

542747 is an equidigital number, since it uses as much as digits as its factorization.

542747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7840, while the sum is 29.

The square root of 542747 is about 736.7136485772. The cubic root of 542747 is about 81.5703784417.

The spelling of 542747 in words is "five hundred forty-two thousand, seven hundred forty-seven".