993944573 has 2 divisors, whose sum is σ = 993944574. Its totient is φ = 993944572.

The previous prime is 993944561. The next prime is 993944603. The reversal of 993944573 is 375449399.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 946362169 + 47582404 = 30763^2 + 6898^2 .

It is a cyclic number.

It is not a de Polignac number, because 993944573 - 2⁸ = 993944317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993944533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496972286 + 496972287.

It is an arithmetic number, because the mean of its divisors is an integer number (496972287).

Almost surely, 2^993944573 is an apocalyptic number.

It is an amenable number.

993944573 is a deficient number, since it is larger than the sum of its proper divisors (1).

993944573 is an equidigital number, since it uses as much as digits as its factorization.

993944573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160, while the sum is 53.

The square root of 993944573 is about 31526.8865097713. The cubic root of 993944573 is about 997.9774363275.

The spelling of 993944573 in words is "nine hundred ninety-three million, nine hundred forty-four thousand, five hundred seventy-three".