9780740 has 24 divisors (see below), whose sum is σ = 20878872. Its totient is φ = 3847680.

The previous prime is 9780731. The next prime is 9780761. The reversal of 9780740 is 470879.

It can be written as a sum of positive squares in 4 ways, for example, as 33856 + 9746884 = 184^2 + 3122^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9780740.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2789 + ... + 5228.

It is an arithmetic number, because the mean of its divisors is an integer number (869953).

Almost surely, 2^9780740 is an apocalyptic number.

It is an amenable number.

9780740 is an abundant number, since it is smaller than the sum of its proper divisors (11098132).

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

9780740 is a wasteful number, since it uses less digits than its factorization.

9780740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8087 (or 8085 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 9780740 is about 3127.4174649381. The cubic root of 9780740 is about 213.8572139773.

The spelling of 9780740 in words is "nine million, seven hundred eighty thousand, seven hundred forty".