9724993 has 2 divisors, whose sum is σ = 9724994. Its totient is φ = 9724992.

The previous prime is 9724961. The next prime is 9725033. The reversal of 9724993 is 3994279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8690704 + 1034289 = 2948^2 + 1017^2 .

It is an emirp because it is prime and its reverse (3994279) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9724993 - 2⁵ = 9724961 is a prime.

It is not a weakly prime, because it can be changed into another prime (9754993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4862496 + 4862497.

It is an arithmetic number, because the mean of its divisors is an integer number (4862497).

Almost surely, 2^9724993 is an apocalyptic number.

It is an amenable number.

9724993 is a deficient number, since it is larger than the sum of its proper divisors (1).

9724993 is an equidigital number, since it uses as much as digits as its factorization.

9724993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 43.

The square root of 9724993 is about 3118.4921035654. The cubic root of 9724993 is about 213.4501343357.

The spelling of 9724993 in words is "nine million, seven hundred twenty-four thousand, nine hundred ninety-three".