543436 has 6 divisors (see below), whose sum is σ = 951020. Its totient is φ = 271716.

The previous prime is 543427. The next prime is 543463. The reversal of 543436 is 634345.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 543436.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67926 + ... + 67933.

2⁵⁴³⁴³⁶ is an apocalyptic number.

It is an amenable number.

543436 is a deficient number, since it is larger than the sum of its proper divisors (407584).

543436 is a wasteful number, since it uses less digits than its factorization.

543436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135863 (or 135861 counting only the distinct ones).

The product of its digits is 4320, while the sum is 25.

The square root of 543436 is about 737.1811175010. The cubic root of 543436 is about 81.6048808435.

Subtracting 543436 from its reverse (634345), we obtain a palindrome (90909).

It can be divided in two parts, 543 and 436, that added together give a palindrome (979).

The spelling of 543436 in words is "five hundred forty-three thousand, four hundred thirty-six".