543421003 has 8 divisors (see below), whose sum is σ = 561673728. Its totient is φ = 525447144.

The previous prime is 543420989. The next prime is 543421009. The reversal of 543421003 is 300124345.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 543421003 - 2¹⁷ = 543289931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (543421009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65751 + ... + 73552.

It is an arithmetic number, because the mean of its divisors is an integer number (70209216).

Almost surely, 2^543421003 is an apocalyptic number.

543421003 is a deficient number, since it is larger than the sum of its proper divisors (18252725).

543421003 is a wasteful number, since it uses less digits than its factorization.

543421003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139433.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 543421003 is about 23311.3921291715. The cubic root of 543421003 is about 816.0413016348.

Adding to 543421003 its reverse (300124345), we get a palindrome (843545348).

The spelling of 543421003 in words is "five hundred forty-three million, four hundred twenty-one thousand, three".