9779121 has 12 divisors (see below), whose sum is σ = 15409680. Its totient is φ = 5926680.

The previous prime is 9779113. The next prime is 9779141. The reversal of 9779121 is 1219779.

It is not a de Polignac number, because 9779121 - 2³ = 9779113 is a prime.

It is a Curzon number.

9779121 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9779101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49291 + ... + 49488.

It is an arithmetic number, because the mean of its divisors is an integer number (1284140).

Almost surely, 2^9779121 is an apocalyptic number.

It is an amenable number.

9779121 is a deficient number, since it is larger than the sum of its proper divisors (5630559).

9779121 is a wasteful number, since it uses less digits than its factorization.

9779121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98796 (or 98793 counting only the distinct ones).

The product of its digits is 7938, while the sum is 36.

The square root of 9779121 is about 3127.1586144614. The cubic root of 9779121 is about 213.8454134409.

The spelling of 9779121 in words is "nine million, seven hundred seventy-nine thousand, one hundred twenty-one".