9770940 has 72 divisors (see below), whose sum is σ = 31209360. Its totient is φ = 2467584.

The previous prime is 9770939. The next prime is 9770947. The reversal of 9770940 is 490779.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 9770895 and 9770904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9770947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1992 + ... + 4848.

Almost surely, 2^9770940 is an apocalyptic number.

9770940 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9770940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15604680).

9770940 is an abundant number, since it is smaller than the sum of its proper divisors (21438420).

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

9770940 is a wasteful number, since it uses less digits than its factorization.

9770940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891 (or 2886 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 9770940 is about 3125.8502843227. The cubic root of 9770940 is about 213.7857639963.

The spelling of 9770940 in words is "nine million, seven hundred seventy thousand, nine hundred forty".