9776220 has 24 divisors (see below), whose sum is σ = 27373584. Its totient is φ = 2606976.

The previous prime is 9776213. The next prime is 9776227. The reversal of 9776220 is 226779.

It is an interprime number because it is at equal distance from previous prime (9776213) and next prime (9776227).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9776227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81409 + ... + 81528.

It is an arithmetic number, because the mean of its divisors is an integer number (1140566).

Almost surely, 2^9776220 is an apocalyptic number.

It is an amenable number.

9776220 is an abundant number, since it is smaller than the sum of its proper divisors (17597364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9776220 is a wasteful number, since it uses less digits than its factorization.

9776220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162949 (or 162947 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 9776220 is about 3126.6947404568. The cubic root of 9776220 is about 213.8242654291.

The spelling of 9776220 in words is "nine million, seven hundred seventy-six thousand, two hundred twenty".