973504321 has 2 divisors, whose sum is σ = 973504322. Its totient is φ = 973504320.

The previous prime is 973504313. The next prime is 973504333. The reversal of 973504321 is 123405379.

973504321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 971007921 + 2496400 = 31161^2 + 1580^2 .

It is a cyclic number.

It is not a de Polignac number, because 973504321 - 2³ = 973504313 is a prime.

It is not a weakly prime, because it can be changed into another prime (973504351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486752160 + 486752161.

It is an arithmetic number, because the mean of its divisors is an integer number (486752161).

Almost surely, 2^973504321 is an apocalyptic number.

It is an amenable number.

973504321 is a deficient number, since it is larger than the sum of its proper divisors (1).

973504321 is an equidigital number, since it uses as much as digits as its factorization.

973504321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 973504321 is about 31201.0307682294. The cubic root of 973504321 is about 991.0889358020.

The spelling of 973504321 in words is "nine hundred seventy-three million, five hundred four thousand, three hundred twenty-one".