321477347 has 4 divisors (see below), whose sum is σ = 331847616. Its totient is φ = 311107080.

The previous prime is 321477337. The next prime is 321477353. The reversal of 321477347 is 743774123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321477347 - 2¹⁴ = 321460963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321477347.

It is not an unprimeable number, because it can be changed into a prime (321477337) 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, 5185088 + ... + 5185149.

It is an arithmetic number, because the mean of its divisors is an integer number (82961904).

Almost surely, 2^321477347 is an apocalyptic number.

321477347 is a deficient number, since it is larger than the sum of its proper divisors (10370269).

321477347 is a wasteful number, since it uses less digits than its factorization.

321477347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10370268.

The product of its digits is 98784, while the sum is 38.

The square root of 321477347 is about 17929.7893741115. The cubic root of 321477347 is about 685.0413579021.

The spelling of 321477347 in words is "three hundred twenty-one million, four hundred seventy-seven thousand, three hundred forty-seven".