9849780 has 36 divisors (see below), whose sum is σ = 29878212. Its totient is φ = 2626560.

The previous prime is 9849779. The next prime is 9849793. The reversal of 9849780 is 879489.

9849780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5363856 + 4485924 = 2316^2 + 2118^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27181 + ... + 27540.

Almost surely, 2^9849780 is an apocalyptic number.

9849780 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9849780 is an abundant number, since it is smaller than the sum of its proper divisors (20028432).

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

9849780 is a wasteful number, since it uses less digits than its factorization.

9849780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54736 (or 54731 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 9849780 is about 3138.4359161850. The cubic root of 9849780 is about 214.3592243036.

The spelling of 9849780 in words is "nine million, eight hundred forty-nine thousand, seven hundred eighty".