9791140 has 12 divisors (see below), whose sum is σ = 20561436. Its totient is φ = 3916448.

The previous prime is 9791129. The next prime is 9791149. The reversal of 9791140 is 411979.

It can be written as a sum of positive squares in 2 ways, for example, as 6749604 + 3041536 = 2598^2 + 1744^2 .

It is not an unprimeable number, because it can be changed into a prime (9791149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244759 + ... + 244798.

It is an arithmetic number, because the mean of its divisors is an integer number (1713453).

Almost surely, 2^9791140 is an apocalyptic number.

It is an amenable number.

9791140 is an abundant number, since it is smaller than the sum of its proper divisors (10770296).

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

9791140 is a wasteful number, since it uses less digits than its factorization.

9791140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489566 (or 489564 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 9791140 is about 3129.0797369195. The cubic root of 9791140 is about 213.9329862665.

The spelling of 9791140 in words is "nine million, seven hundred ninety-one thousand, one hundred forty".