9770 has 8 divisors (see below), whose sum is σ = 17604. Its totient is φ = 3904.

The previous prime is 9769. The next prime is 9781. The reversal of 9770 is 779.

9770 = T₆₀ + T₆₁ + ... + T₆₄.

It can be written as a sum of positive squares in 2 ways, for example, as 9409 + 361 = 97^2 + 19^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a plaindrome in base 14.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479 + ... + 498.

2⁹⁷⁷⁰ is an apocalyptic number.

9770 is a deficient number, since it is larger than the sum of its proper divisors (7834).

9770 is a wasteful number, since it uses less digits than its factorization.

9770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984.

The product of its (nonzero) digits is 441, while the sum is 23.

The square root of 9770 is about 98.8433103452. The cubic root of 9770 is about 21.3778908120.

The spelling of 9770 in words is "nine thousand, seven hundred seventy".