3189897321 has 8 divisors (see below), whose sum is σ = 4580365440. Its totient is φ = 1963013712.

The previous prime is 3189897259. The next prime is 3189897329. The reversal of 3189897321 is 1237989813.

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

It is not a de Polignac number, because 3189897321 - 2¹⁸ = 3189635177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3189897329) 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 7 ways as a sum of consecutive naturals, for example, 40896081 + ... + 40896158.

It is an arithmetic number, because the mean of its divisors is an integer number (572545680).

Almost surely, 2^3189897321 is an apocalyptic number.

It is an amenable number.

3189897321 is a deficient number, since it is larger than the sum of its proper divisors (1390468119).

3189897321 is a wasteful number, since it uses less digits than its factorization.

3189897321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81792255.

The product of its digits is 653184, while the sum is 51.

The square root of 3189897321 is about 56479.1759943433. The cubic root of 3189897321 is about 1472.0601901253.

The spelling of 3189897321 in words is "three billion, one hundred eighty-nine million, eight hundred ninety-seven thousand, three hundred twenty-one".