543430073 has 4 divisors (see below), whose sum is σ = 548415780. Its totient is φ = 538444368.

The previous prime is 543430037. The next prime is 543430081. The reversal of 543430073 is 370034345.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 278489344 + 264940729 = 16688^2 + 16277^2 .

It is a cyclic number.

It is not a de Polignac number, because 543430073 - 2⁶ = 543430009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (543436073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2492690 + ... + 2492907.

It is an arithmetic number, because the mean of its divisors is an integer number (137103945).

Almost surely, 2^543430073 is an apocalyptic number.

It is an amenable number.

543430073 is a deficient number, since it is larger than the sum of its proper divisors (4985707).

543430073 is a wasteful number, since it uses less digits than its factorization.

543430073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4985706.

The product of its (nonzero) digits is 15120, while the sum is 29.

The square root of 543430073 is about 23311.5866684359. The cubic root of 543430073 is about 816.0458416712.

The spelling of 543430073 in words is "five hundred forty-three million, four hundred thirty thousand, seventy-three".