9247742217 has 60 divisors (see below), whose sum is σ = 16113185220. Its totient is φ = 5270215104.

The previous prime is 9247742197. The next prime is 9247742219. The reversal of 9247742217 is 7122477429.

It can be written as a sum of positive squares in 2 ways, for example, as 3272297616 + 5975444601 = 57204^2 + 77301^2 .

It is not a de Polignac number, because 9247742217 - 2¹⁹ = 9247217929 is a prime.

It is a super-2 number, since 2×9247742217² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9247742219) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1572759 + ... + 1578627.

It is an arithmetic number, because the mean of its divisors is an integer number (268553087).

Almost surely, 2^9247742217 is an apocalyptic number.

It is an amenable number.

9247742217 is a deficient number, since it is larger than the sum of its proper divisors (6865443003).

9247742217 is a wasteful number, since it uses less digits than its factorization.

9247742217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6292 (or 6276 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 9247742217 is about 96165.1819371232. The cubic root of 9247742217 is about 2098.9974214267.

The spelling of 9247742217 in words is "nine billion, two hundred forty-seven million, seven hundred forty-two thousand, two hundred seventeen".