543494869 has 2 divisors, whose sum is σ = 543494870. Its totient is φ = 543494868.

The previous prime is 543494803. The next prime is 543494891. The reversal of 543494869 is 968494345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 526105969 + 17388900 = 22937^2 + 4170^2 .

It is a cyclic number.

It is not a de Polignac number, because 543494869 - 2¹³ = 543486677 is a prime.

It is a super-2 number, since 2×543494869² = 590773345258654322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (543498869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271747434 + 271747435.

It is an arithmetic number, because the mean of its divisors is an integer number (271747435).

Almost surely, 2^543494869 is an apocalyptic number.

It is an amenable number.

543494869 is a deficient number, since it is larger than the sum of its proper divisors (1).

543494869 is an equidigital number, since it uses as much as digits as its factorization.

543494869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 52.

The square root of 543494869 is about 23312.9764080008. The cubic root of 543494869 is about 816.0782741819.

The spelling of 543494869 in words is "five hundred forty-three million, four hundred ninety-four thousand, eight hundred sixty-nine".