973505213 has 2 divisors, whose sum is σ = 973505214. Its totient is φ = 973505212.

The previous prime is 973505191. The next prime is 973505227. The reversal of 973505213 is 312505379.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 814417444 + 159087769 = 28538^2 + 12613^2 .

It is a cyclic number.

It is not a de Polignac number, because 973505213 - 2¹⁴ = 973488829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (973505713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486752606 + 486752607.

It is an arithmetic number, because the mean of its divisors is an integer number (486752607).

Almost surely, 2^973505213 is an apocalyptic number.

It is an amenable number.

973505213 is a deficient number, since it is larger than the sum of its proper divisors (1).

973505213 is an equidigital number, since it uses as much as digits as its factorization.

973505213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28350, while the sum is 35.

The square root of 973505213 is about 31201.0450626257. The cubic root of 973505213 is about 991.0892385060.

The spelling of 973505213 in words is "nine hundred seventy-three million, five hundred five thousand, two hundred thirteen".