1671394589 has 8 divisors (see below), whose sum is σ = 1714621440. Its totient is φ = 1628487216.

The previous prime is 1671394579. The next prime is 1671394597. The reversal of 1671394589 is 9854931761.

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 1671394589 - 2¹² = 1671390493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1671394589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1671394579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69254 + ... + 90215.

It is an arithmetic number, because the mean of its divisors is an integer number (214327680).

Almost surely, 2^1671394589 is an apocalyptic number.

It is an amenable number.

1671394589 is a deficient number, since it is larger than the sum of its proper divisors (43226851).

1671394589 is a wasteful number, since it uses less digits than its factorization.

1671394589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159739.

The product of its digits is 1632960, while the sum is 53.

The square root of 1671394589 is about 40882.6930252888. The cubic root of 1671394589 is about 1186.7511574087.

The spelling of 1671394589 in words is "one billion, six hundred seventy-one million, three hundred ninety-four thousand, five hundred eighty-nine".