1989325217 has 8 divisors (see below), whose sum is σ = 2170642752. Its totient is φ = 1808086000.

The previous prime is 1989325201. The next prime is 1989325231. The reversal of 1989325217 is 7125239891.

It is a happy number.

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 1989325217 - 2⁴ = 1989325201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1989325237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41963 + ... + 75759.

It is an arithmetic number, because the mean of its divisors is an integer number (271330344).

Almost surely, 2^1989325217 is an apocalyptic number.

It is an amenable number.

1989325217 is a deficient number, since it is larger than the sum of its proper divisors (181317535).

1989325217 is a wasteful number, since it uses less digits than its factorization.

1989325217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39159.

The product of its digits is 272160, while the sum is 47.

The square root of 1989325217 is about 44601.8521700613. The cubic root of 1989325217 is about 1257.6754860250.

The spelling of 1989325217 in words is "one billion, nine hundred eighty-nine million, three hundred twenty-five thousand, two hundred seventeen".