1329806 has 8 divisors (see below), whose sum is σ = 1999944. Its totient is φ = 663160.

The previous prime is 1329799. The next prime is 1329847. The reversal of 1329806 is 6089231.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536 + ... + 1716.

It is an arithmetic number, because the mean of its divisors is an integer number (249993).

2^1329806 is an apocalyptic number.

1329806 is a deficient number, since it is larger than the sum of its proper divisors (670138).

1329806 is a wasteful number, since it uses less digits than its factorization.

1329806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1329806 is about 1153.1721467327. The cubic root of 1329806 is about 109.9670975975.

The spelling of 1329806 in words is "one million, three hundred twenty-nine thousand, eight hundred six".