9766320897 has 4 divisors (see below), whose sum is σ = 13021761200. Its totient is φ = 6510880596.

The previous prime is 9766320791. The next prime is 9766320919. The reversal of 9766320897 is 7980236679.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9766320897 - 2¹⁰ = 9766319873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9766322897) 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, 1627720147 + ... + 1627720152.

It is an arithmetic number, because the mean of its divisors is an integer number (3255440300).

Almost surely, 2^9766320897 is an apocalyptic number.

It is an amenable number.

9766320897 is a deficient number, since it is larger than the sum of its proper divisors (3255440303).

9766320897 is a wasteful number, since it uses less digits than its factorization.

9766320897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3255440302.

The product of its (nonzero) digits is 6858432, while the sum is 57.

The square root of 9766320897 is about 98824.6978087968. The cubic root of 9766320897 is about 2137.5207040709.

The spelling of 9766320897 in words is "nine billion, seven hundred sixty-six million, three hundred twenty thousand, eight hundred ninety-seven".