543852649 has 4 divisors (see below), whose sum is σ = 545624464. Its totient is φ = 542080836.

The previous prime is 543852643. The next prime is 543852667. The reversal of 543852649 is 946258345.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 543852649 - 2⁷ = 543852521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 543852599 and 543852608.

It is not an unprimeable number, because it can be changed into a prime (543852643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 885447 + ... + 886060.

It is an arithmetic number, because the mean of its divisors is an integer number (136406116).

Almost surely, 2^543852649 is an apocalyptic number.

It is an amenable number.

543852649 is a deficient number, since it is larger than the sum of its proper divisors (1771815).

543852649 is a wasteful number, since it uses less digits than its factorization.

543852649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771814.

The product of its digits is 1036800, while the sum is 46.

The square root of 543852649 is about 23320.6485544463. The cubic root of 543852649 is about 816.2573083403.

The spelling of 543852649 in words is "five hundred forty-three million, eight hundred fifty-two thousand, six hundred forty-nine".