9976613689 has 27 divisors (see below), whose sum is σ = 12264740901. Its totient is φ = 8090523000.

The previous prime is 9976613683. The next prime is 9976613723. The reversal of 9976613689 is 9863166799.

The square root of 9976613689 is 99883.

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

It is not a de Polignac number, because 9976613689 - 2⁹ = 9976613177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9976613689.

It is not an unprimeable number, because it can be changed into a prime (9976613683) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 13284064 + ... + 13284814.

It is an arithmetic number, because the mean of its divisors is an integer number (454249663).

Almost surely, 2^9976613689 is an apocalyptic number.

9976613689 is the 99883-rd square number.

9976613689 is the 49942-nd centered octagonal number.

It is an amenable number.

9976613689 is a deficient number, since it is larger than the sum of its proper divisors (2288127212).

9976613689 is an frugal number, since it uses more digits than its factorization.

9976613689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554 (or 777 counting only the distinct ones).

The product of its digits is 26453952, while the sum is 64.

The cubic root of 9976613689 is about 2152.7539031136.

Multiplying 9976613689 by its sum of digits (64), we get a square (638503276096 = 799064²).

The spelling of 9976613689 in words is "nine billion, nine hundred seventy-six million, six hundred thirteen thousand, six hundred eighty-nine".