9977328 has 60 divisors (see below), whose sum is σ = 28145520. Its totient is φ = 3299328.

The previous prime is 9977327. The next prime is 9977329. The reversal of 9977328 is 8237799.

9977328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9977327) and next prime (9977329).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9977321) 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, 27613 + ... + 27971.

It is an arithmetic number, because the mean of its divisors is an integer number (469092).

Almost surely, 2^9977328 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 9977328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14072760).

9977328 is an abundant number, since it is smaller than the sum of its proper divisors (18168192).

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

9977328 is a wasteful number, since it uses less digits than its factorization.

9977328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 557 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 9977328 is about 3158.6908680654. The cubic root of 9977328 is about 215.2805279901.

The spelling of 9977328 in words is "nine million, nine hundred seventy-seven thousand, three hundred twenty-eight".