9784981 has 8 divisors (see below), whose sum is σ = 10404000. Its totient is φ = 9176400.

The previous prime is 9784921. The next prime is 9784987. The reversal of 9784981 is 1894879.

It is a happy number.

9784981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9784981 - 2¹¹ = 9782933 is a prime.

It is a super-2 number, since 2×9784981² = 191491706340722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9784987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631 + ... + 4468.

It is an arithmetic number, because the mean of its divisors is an integer number (1300500).

Almost surely, 2^9784981 is an apocalyptic number.

It is an amenable number.

9784981 is a deficient number, since it is larger than the sum of its proper divisors (619019).

9784981 is a wasteful number, since it uses less digits than its factorization.

9784981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5219.

The product of its digits is 145152, while the sum is 46.

The square root of 9784981 is about 3128.0954269331. The cubic root of 9784981 is about 213.8881195252. Note that the first 3 decimals are identical.

It can be divided in two parts, 97 and 84981, that added together give a triangular number (85078 = T₄₁₂).

The spelling of 9784981 in words is "nine million, seven hundred eighty-four thousand, nine hundred eighty-one".