9776660 has 12 divisors (see below), whose sum is σ = 20531028. Its totient is φ = 3910656.

The previous prime is 9776651. The next prime is 9776693. The reversal of 9776660 is 666779.

It can be written as a sum of positive squares in 2 ways, for example, as 5299204 + 4477456 = 2302^2 + 2116^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 10.

It is a congruent number.

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, 244397 + ... + 244436.

It is an arithmetic number, because the mean of its divisors is an integer number (1710919).

Almost surely, 2^9776660 is an apocalyptic number.

It is an amenable number.

9776660 is an abundant number, since it is smaller than the sum of its proper divisors (10754368).

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

9776660 is a wasteful number, since it uses less digits than its factorization.

9776660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488842 (or 488840 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 9776660 is about 3126.7651015067. The cubic root of 9776660 is about 213.8274732560.

The spelling of 9776660 in words is "nine million, seven hundred seventy-six thousand, six hundred sixty".