331221673 has 4 divisors (see below), whose sum is σ = 342643140. Its totient is φ = 319800208.

The previous prime is 331221637. The next prime is 331221691. The reversal of 331221673 is 376122133.

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

It can be written as a sum of positive squares in 2 ways, for example, as 194518809 + 136702864 = 13947^2 + 11692^2 .

It is a cyclic number.

It is not a de Polignac number, because 331221673 - 2¹⁷ = 331090601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331228673) 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, 5710690 + ... + 5710747.

It is an arithmetic number, because the mean of its divisors is an integer number (85660785).

Almost surely, 2^331221673 is an apocalyptic number.

It is an amenable number.

331221673 is a deficient number, since it is larger than the sum of its proper divisors (11421467).

331221673 is a wasteful number, since it uses less digits than its factorization.

331221673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11421466.

The product of its digits is 4536, while the sum is 28.

The square root of 331221673 is about 18199.4965040245. The cubic root of 331221673 is about 691.8940281497.

The spelling of 331221673 in words is "three hundred thirty-one million, two hundred twenty-one thousand, six hundred seventy-three".