9770121 has 12 divisors (see below), whose sum is σ = 14942772. Its totient is φ = 6130176.

The previous prime is 9770119. The next prime is 9770143. The reversal of 9770121 is 1210779.

It can be written as a sum of positive squares in 2 ways, for example, as 7096896 + 2673225 = 2664^2 + 1635^2 .

It is not a de Polignac number, because 9770121 - 2¹ = 9770119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9770191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31776 + ... + 32081.

It is an arithmetic number, because the mean of its divisors is an integer number (1245231).

Almost surely, 2^9770121 is an apocalyptic number.

It is an amenable number.

9770121 is a deficient number, since it is larger than the sum of its proper divisors (5172651).

9770121 is a wasteful number, since it uses less digits than its factorization.

9770121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63880 (or 63877 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 27.

The square root of 9770121 is about 3125.7192772224. The cubic root of 9770121 is about 213.7797906565.

The spelling of 9770121 in words is "nine million, seven hundred seventy thousand, one hundred twenty-one".