1329089 has 4 divisors (see below), whose sum is σ = 1335600. Its totient is φ = 1322580.

The previous prime is 1329073. The next prime is 1329091. The reversal of 1329089 is 9809231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1329089 - 2⁴ = 1329073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1322089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2939 + ... + 3360.

It is an arithmetic number, because the mean of its divisors is an integer number (333900).

2^1329089 is an apocalyptic number.

It is an amenable number.

1329089 is a deficient number, since it is larger than the sum of its proper divisors (6511).

1329089 is an equidigital number, since it uses as much as digits as its factorization.

1329089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6510.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1329089 is about 1152.8612232181. The cubic root of 1329089 is about 109.9473301567.

The spelling of 1329089 in words is "one million, three hundred twenty-nine thousand, eighty-nine".