321473 has 4 divisors (see below), whose sum is σ = 322608. Its totient is φ = 320340.

The previous prime is 321469. The next prime is 321509. The reversal of 321473 is 374123.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 321473 - 2² = 321469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 321473.

It is not an unprimeable number, because it can be changed into a prime (321403) 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, 278 + ... + 848.

It is an arithmetic number, because the mean of its divisors is an integer number (80652).

2³²¹⁴⁷³ is an apocalyptic number.

It is an amenable number.

321473 is a deficient number, since it is larger than the sum of its proper divisors (1135).

321473 is an equidigital number, since it uses as much as digits as its factorization.

321473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134.

The product of its digits is 504, while the sum is 20.

The square root of 321473 is about 566.9858904770. The cubic root of 321473 is about 68.5038270190.

Adding to 321473 its reverse (374123), we get a palindrome (695596).

Subtracting 321473 from its reverse (374123), we obtain a triangular number (52650 = T₃₂₄).

The spelling of 321473 in words is "three hundred twenty-one thousand, four hundred seventy-three", and thus it is an iban number.