9980772 has 12 divisors (see below), whose sum is σ = 23288496. Its totient is φ = 3326920.

The previous prime is 9980771. The next prime is 9980777. The reversal of 9980772 is 2770899.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (9980771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415854 + ... + 415877.

It is an arithmetic number, because the mean of its divisors is an integer number (1940708).

Almost surely, 2^9980772 is an apocalyptic number.

It is an amenable number.

9980772 is an abundant number, since it is smaller than the sum of its proper divisors (13307724).

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

9980772 is a wasteful number, since it uses less digits than its factorization.

9980772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831738 (or 831736 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 9980772 is about 3159.2359835884. The cubic root of 9980772 is about 215.3052955046.

The spelling of 9980772 in words is "nine million, nine hundred eighty thousand, seven hundred seventy-two".