9170647049 has 4 divisors (see below), whose sum is σ = 9171442500. Its totient is φ = 9169851600.

The previous prime is 9170647037. The next prime is 9170647051. The reversal of 9170647049 is 9407460719.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9407460719 = 91781 ⋅102499.

It can be written as a sum of positive squares in 2 ways, for example, as 5086542400 + 4084104649 = 71320^2 + 63907^2 .

It is a cyclic number.

It is not a de Polignac number, because 9170647049 - 2¹⁶ = 9170581513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9170646994 and 9170647012.

It is not an unprimeable number, because it can be changed into a prime (9170647249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380174 + ... + 403575.

It is an arithmetic number, because the mean of its divisors is an integer number (2292860625).

Almost surely, 2^9170647049 is an apocalyptic number.

It is an amenable number.

9170647049 is a deficient number, since it is larger than the sum of its proper divisors (795451).

9170647049 is a wasteful number, since it uses less digits than its factorization.

9170647049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795450.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 9170647049 is about 95763.4953883786. The cubic root of 9170647049 is about 2093.1482698081.

The spelling of 9170647049 in words is "nine billion, one hundred seventy million, six hundred forty-seven thousand, forty-nine".