543437849 has 4 divisors (see below), whose sum is σ = 552648720. Its totient is φ = 534226980.

The previous prime is 543437809. The next prime is 543437857. The reversal of 543437849 is 948734345.

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 543437849 - 2²⁴ = 526660633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (543437809) 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, 4605347 + ... + 4605464.

It is an arithmetic number, because the mean of its divisors is an integer number (138162180).

Almost surely, 2^543437849 is an apocalyptic number.

543437849 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

543437849 is a deficient number, since it is larger than the sum of its proper divisors (9210871).

543437849 is an equidigital number, since it uses as much as digits as its factorization.

543437849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9210870.

The product of its digits is 1451520, while the sum is 47.

The square root of 543437849 is about 23311.7534518534. The cubic root of 543437849 is about 816.0497339489.

The spelling of 543437849 in words is "five hundred forty-three million, four hundred thirty-seven thousand, eight hundred forty-nine".