8971499523 has 24 divisors (see below), whose sum is σ = 13922618448. Its totient is φ = 5123756736.

The previous prime is 8971499521. The next prime is 8971499561. The reversal of 8971499523 is 3259941798.

It is a Cunningham number, because it is equal to 94718²-1.

It is not a de Polignac number, because 8971499523 - 2¹ = 8971499521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8971499521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268365 + ... + 299937.

It is an arithmetic number, because the mean of its divisors is an integer number (580109102).

Almost surely, 2^8971499523 is an apocalyptic number.

8971499523 is a deficient number, since it is larger than the sum of its proper divisors (4951118925).

8971499523 is a wasteful number, since it uses less digits than its factorization.

8971499523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33523 (or 33516 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 57.

The square root of 8971499523 is about 94717.9999947212. Note that the first 5 decimals coincide. The cubic root of 8971499523 is about 2077.8858204803.

The spelling of 8971499523 in words is "eight billion, nine hundred seventy-one million, four hundred ninety-nine thousand, five hundred twenty-three".