543578989 has 2 divisors, whose sum is σ = 543578990. Its totient is φ = 543578988.

The previous prime is 543578963. The next prime is 543579031. The reversal of 543578989 is 989875345.

543578989 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., 504766089 + 38812900 = 22467^2 + 6230^2 .

It is a cyclic number.

It is not a de Polignac number, because 543578989 - 2⁵ = 543578957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (543578909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271789494 + 271789495.

It is an arithmetic number, because the mean of its divisors is an integer number (271789495).

Almost surely, 2^543578989 is an apocalyptic number.

It is an amenable number.

543578989 is a deficient number, since it is larger than the sum of its proper divisors (1).

543578989 is an equidigital number, since it uses as much as digits as its factorization.

543578989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10886400, while the sum is 58.

The square root of 543578989 is about 23314.7804836331. The cubic root of 543578989 is about 816.1203751393.

The spelling of 543578989 in words is "five hundred forty-three million, five hundred seventy-eight thousand, nine hundred eighty-nine".