9776772 has 36 divisors (see below), whose sum is σ = 25137840. Its totient is φ = 3202992.

The previous prime is 9776761. The next prime is 9776779. The reversal of 9776772 is 2776779.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (9776779) 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, 178 + ... + 4425.

Almost surely, 2^9776772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9776772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12568920).

9776772 is an abundant number, since it is smaller than the sum of its proper divisors (15361068).

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

9776772 is a wasteful number, since it uses less digits than its factorization.

9776772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4672 (or 4667 counting only the distinct ones).

The product of its digits is 259308, while the sum is 45.

The square root of 9776772 is about 3126.7830113393. The cubic root of 9776772 is about 213.8282897784.

The spelling of 9776772 in words is "nine million, seven hundred seventy-six thousand, seven hundred seventy-two".