9247742197 has 2 divisors, whose sum is σ = 9247742198. Its totient is φ = 9247742196.

The previous prime is 9247742183. The next prime is 9247742219. The reversal of 9247742197 is 7912477429.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8252087281 + 995654916 = 90841^2 + 31554^2 .

It is a cyclic number.

It is not a de Polignac number, because 9247742197 - 2¹⁹ = 9247217909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9247742117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4623871098 + 4623871099.

It is an arithmetic number, because the mean of its divisors is an integer number (4623871099).

Almost surely, 2^9247742197 is an apocalyptic number.

It is an amenable number.

9247742197 is a deficient number, since it is larger than the sum of its proper divisors (1).

9247742197 is an equidigital number, since it uses as much as digits as its factorization.

9247742197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1778112, while the sum is 52.

The square root of 9247742197 is about 96165.1818331354. The cubic root of 9247742197 is about 2098.9974199136.

The spelling of 9247742197 in words is "nine billion, two hundred forty-seven million, seven hundred forty-two thousand, one hundred ninety-seven".