543959403 has 16 divisors (see below), whose sum is σ = 786696960. Its totient is φ = 332332704.

The previous prime is 543959389. The next prime is 543959441. The reversal of 543959403 is 304959345.

It is a happy number.

It is not a de Polignac number, because 543959403 - 2¹³ = 543951211 is a prime.

It is a super-2 number, since 2×543959403² = 591783664224232818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (543959443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44751 + ... + 55592.

It is an arithmetic number, because the mean of its divisors is an integer number (49168560).

Almost surely, 2^543959403 is an apocalyptic number.

543959403 is a deficient number, since it is larger than the sum of its proper divisors (242737557).

543959403 is a wasteful number, since it uses less digits than its factorization.

543959403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100498.

The product of its (nonzero) digits is 291600, while the sum is 42.

The square root of 543959403 is about 23322.9372721362. The cubic root of 543959403 is about 816.3107131440.

The spelling of 543959403 in words is "five hundred forty-three million, nine hundred fifty-nine thousand, four hundred three".