671450543 has 8 divisors (see below), whose sum is σ = 695379600. Its totient is φ = 647573248.

The previous prime is 671450539. The next prime is 671450551. The reversal of 671450543 is 345054176.

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

It is not a de Polignac number, because 671450543 - 2² = 671450539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671450243) 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 7 ways as a sum of consecutive naturals, for example, 14480 + ... + 39402.

It is an arithmetic number, because the mean of its divisors is an integer number (86922450).

Almost surely, 2^671450543 is an apocalyptic number.

671450543 is a deficient number, since it is larger than the sum of its proper divisors (23929057).

671450543 is a wasteful number, since it uses less digits than its factorization.

671450543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25881.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 671450543 is about 25912.3627444508. The cubic root of 671450543 is about 875.6650369464.

The spelling of 671450543 in words is "six hundred seventy-one million, four hundred fifty thousand, five hundred forty-three".