1002327989 has 8 divisors (see below), whose sum is σ = 1080368352. Its totient is φ = 924421680.

The previous prime is 1002327983. The next prime is 1002328009. The reversal of 1002327989 is 9897232001.

It is a happy number.

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

It is not a de Polignac number, because 1002327989 - 2²⁴ = 985550773 is a prime.

It is a super-2 number, since 2×1002327989² = 2009322795065568242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002327983) 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, 17699 + ... + 48144.

It is an arithmetic number, because the mean of its divisors is an integer number (135046044).

Almost surely, 2^1002327989 is an apocalyptic number.

It is an amenable number.

1002327989 is a deficient number, since it is larger than the sum of its proper divisors (78040363).

1002327989 is a wasteful number, since it uses less digits than its factorization.

1002327989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67027.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 1002327989 is about 31659.5639420381. The cubic root of 1002327989 is about 1000.7753949406.

The spelling of 1002327989 in words is "one billion, two million, three hundred twenty-seven thousand, nine hundred eighty-nine".