1641328089 has 16 divisors (see below), whose sum is σ = 2207262528. Its totient is φ = 1084827392.

The previous prime is 1641328081. The next prime is 1641328111. The reversal of 1641328089 is 9808231461.

It is a cyclic number.

It is not a de Polignac number, because 1641328089 - 2³ = 1641328081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1641328089.

It is not an unprimeable number, because it can be changed into a prime (1641328081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387109 + ... + 391325.

It is an arithmetic number, because the mean of its divisors is an integer number (137953908).

Almost surely, 2^1641328089 is an apocalyptic number.

It is an amenable number.

1641328089 is a deficient number, since it is larger than the sum of its proper divisors (565934439).

1641328089 is a wasteful number, since it uses less digits than its factorization.

1641328089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5304.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 1641328089 is about 40513.3075544320. The cubic root of 1641328089 is about 1179.5919514615.

The spelling of 1641328089 in words is "one billion, six hundred forty-one million, three hundred twenty-eight thousand, eighty-nine".