671499559 has 8 divisors (see below), whose sum is σ = 713917152. Its totient is φ = 630183840.

The previous prime is 671499503. The next prime is 671499583. The reversal of 671499559 is 955994176.

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 671499559 - 2¹⁹ = 670975271 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 (671499359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274212 + ... + 276649.

It is an arithmetic number, because the mean of its divisors is an integer number (89239644).

Almost surely, 2^671499559 is an apocalyptic number.

671499559 is a deficient number, since it is larger than the sum of its proper divisors (42417593).

671499559 is a wasteful number, since it uses less digits than its factorization.

671499559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550937.

The product of its digits is 3061800, while the sum is 55.

The square root of 671499559 is about 25913.3085305601. The cubic root of 671499559 is about 875.6863443251.

The spelling of 671499559 in words is "six hundred seventy-one million, four hundred ninety-nine thousand, five hundred fifty-nine".