543401663 has 16 divisors (see below), whose sum is σ = 629207040. Its totient is φ = 459668736.

The previous prime is 543401641. The next prime is 543401671. The reversal of 543401663 is 366104345.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-543401663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543421663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297170 + ... + 298992.

It is an arithmetic number, because the mean of its divisors is an integer number (39325440).

Almost surely, 2^543401663 is an apocalyptic number.

543401663 is a deficient number, since it is larger than the sum of its proper divisors (85805377).

543401663 is a wasteful number, since it uses less digits than its factorization.

543401663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 543401663 is about 23310.9773068398. The cubic root of 543401663 is about 816.0316207269.

The spelling of 543401663 in words is "five hundred forty-three million, four hundred one thousand, six hundred sixty-three".