1329473 has 4 divisors (see below), whose sum is σ = 1341780. Its totient is φ = 1317168.

The previous prime is 1329457. The next prime is 1329479. The reversal of 1329473 is 3749231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3749231 = 17 ⋅220543.

It can be written as a sum of positive squares in 2 ways, for example, as 935089 + 394384 = 967^2 + 628^2 .

It is a cyclic number.

It is not a de Polignac number, because 1329473 - 2⁴ = 1329457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5990 + ... + 6207.

It is an arithmetic number, because the mean of its divisors is an integer number (335445).

2^1329473 is an apocalyptic number.

It is an amenable number.

1329473 is a deficient number, since it is larger than the sum of its proper divisors (12307).

1329473 is a wasteful number, since it uses less digits than its factorization.

1329473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12306.

The product of its digits is 4536, while the sum is 29.

The square root of 1329473 is about 1153.0277533520. The cubic root of 1329473 is about 109.9579177871.

The spelling of 1329473 in words is "one million, three hundred twenty-nine thousand, four hundred seventy-three".