331456673 has 4 divisors (see below), whose sum is σ = 333568020. Its totient is φ = 329345328.

The previous prime is 331456651. The next prime is 331456709. The reversal of 331456673 is 376654133.

It is a happy number.

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 34480384 + 296976289 = 5872^2 + 17233^2 .

It is a cyclic number.

It is not a de Polignac number, because 331456673 - 2¹² = 331452577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331456603) 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 3 ways as a sum of consecutive naturals, for example, 1055438 + ... + 1055751.

It is an arithmetic number, because the mean of its divisors is an integer number (83392005).

Almost surely, 2^331456673 is an apocalyptic number.

It is an amenable number.

331456673 is a deficient number, since it is larger than the sum of its proper divisors (2111347).

331456673 is a wasteful number, since it uses less digits than its factorization.

331456673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111346.

The product of its digits is 136080, while the sum is 38.

The square root of 331456673 is about 18205.9515818317. The cubic root of 331456673 is about 692.0576211667.

The spelling of 331456673 in words is "three hundred thirty-one million, four hundred fifty-six thousand, six hundred seventy-three".