543887994 has 64 divisors (see below), whose sum is σ = 1237598208. Its totient is φ = 158155200.

The previous prime is 543887983. The next prime is 543888013. The reversal of 543887994 is 499788345.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 101359 + ... + 106589.

It is an arithmetic number, because the mean of its divisors is an integer number (19337472).

Almost surely, 2^543887994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 543887994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (618799104).

543887994 is an abundant number, since it is smaller than the sum of its proper divisors (693710214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

543887994 is a wasteful number, since it uses less digits than its factorization.

543887994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5323.

The product of its digits is 8709120, while the sum is 57.

The square root of 543887994 is about 23321.4063469594. The cubic root of 543887994 is about 816.2749908196.

The spelling of 543887994 in words is "five hundred forty-three million, eight hundred eighty-seven thousand, nine hundred ninety-four".