543389649 has 48 divisors (see below), whose sum is σ = 846671616. Its totient is φ = 307360000.

The previous prime is 543389633. The next prime is 543389663. The reversal of 543389649 is 946983345.

543389649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 543389649 - 2⁴ = 543389633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (543389699) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2164774 + ... + 2165024.

It is an arithmetic number, because the mean of its divisors is an integer number (17638992).

Almost surely, 2^543389649 is an apocalyptic number.

It is an amenable number.

543389649 is a deficient number, since it is larger than the sum of its proper divisors (303281967).

543389649 is a wasteful number, since it uses less digits than its factorization.

543389649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 509 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 51.

The square root of 543389649 is about 23310.7196156618. The cubic root of 543389649 is about 816.0256068353.

The spelling of 543389649 in words is "five hundred forty-three million, three hundred eighty-nine thousand, six hundred forty-nine".