542693 has 2 divisors, whose sum is σ = 542694. Its totient is φ = 542692.

The previous prime is 542687. The next prime is 542713. The reversal of 542693 is 396245.

542693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332929 + 209764 = 577^2 + 458^2 .

It is a cyclic number.

It is not a de Polignac number, because 542693 - 2¹⁰ = 541669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271346 + 271347.

It is an arithmetic number, because the mean of its divisors is an integer number (271347).

2⁵⁴²⁶⁹³ is an apocalyptic number.

It is an amenable number.

542693 is a deficient number, since it is larger than the sum of its proper divisors (1).

542693 is an equidigital number, since it uses as much as digits as its factorization.

542693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 29.

The square root of 542693 is about 736.6769984193. The cubic root of 542693 is about 81.5676731010.

The spelling of 542693 in words is "five hundred forty-two thousand, six hundred ninety-three".