8715529449 has 135 divisors (see below), whose sum is σ = 15333716167. Its totient is φ = 4929249600.

The previous prime is 8715529421. The next prime is 8715529477. The reversal of 8715529449 is 9449255178.

It is a happy number.

The square root of 8715529449 is 93357.

It is a perfect power (a square), and thus also a powerful number.

8715529449 is a `hidden beast` number, since 8 + 71 + 5 + 529 + 4 + 49 = 666.

It is an interprime number because it is at equal distance from previous prime (8715529421) and next prime (8715529477).

It can be written as a sum of positive squares in only one way, i.e., 419963049 + 8295566400 = 20493^2 + 91080^2 .

It is not a de Polignac number, because 8715529449 - 2⁹ = 8715528937 is a prime.

Its product of digits (3628800) is a multiple of the sum of its prime factors (162).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8715529395 and 8715529404.

It is not an unprimeable number, because it can be changed into a prime (8715529499) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 212573869 + ... + 212573909.

Almost surely, 2^8715529449 is an apocalyptic number.

8715529449 is the 93357-th square number.

8715529449 is the 46679-th centered octagonal number.

It is an amenable number.

8715529449 is a deficient number, since it is larger than the sum of its proper divisors (6618186718).

8715529449 is a wasteful number, since it uses less digits than its factorization.

8715529449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 78 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The cubic root of 8715529449 is about 2057.9331273054.

The spelling of 8715529449 in words is "eight billion, seven hundred fifteen million, five hundred twenty-nine thousand, four hundred forty-nine".