321429 has 8 divisors (see below), whose sum is σ = 431200. Its totient is φ = 212976.

The previous prime is 321427. The next prime is 321443. The reversal of 321429 is 924123.

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

It is not a de Polignac number, because 321429 - 2¹ = 321427 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 321429.

It is not an unprimeable number, because it can be changed into a prime (321427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747 + ... + 1095.

It is an arithmetic number, because the mean of its divisors is an integer number (53900).

2³²¹⁴²⁹ is an apocalyptic number.

It is an amenable number.

321429 is a deficient number, since it is larger than the sum of its proper divisors (109771).

321429 is a wasteful number, since it uses less digits than its factorization.

321429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659.

The product of its digits is 432, while the sum is 21.

The square root of 321429 is about 566.9470874782. The cubic root of 321429 is about 68.5007015042.

The spelling of 321429 in words is "three hundred twenty-one thousand, four hundred twenty-nine".