9420981 has 8 divisors (see below), whose sum is σ = 12586464. Its totient is φ = 6268080.

The previous prime is 9420959. The next prime is 9420997. The reversal of 9420981 is 1890249.

9420981 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 not a de Polignac number, because 9420981 - 2¹⁴ = 9404597 is a prime.

It is a super-2 number, since 2×9420981² = 177509766004722, which contains 22 as substring.

9420981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9420581) 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, 1230 + ... + 4511.

It is an arithmetic number, because the mean of its divisors is an integer number (1573308).

Almost surely, 2^9420981 is an apocalyptic number.

9420981 is the 1641-st nonagonal number.

It is an amenable number.

9420981 is a deficient number, since it is larger than the sum of its proper divisors (3165483).

9420981 is a wasteful number, since it uses less digits than its factorization.

9420981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6291.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 9420981 is about 3069.3616600199. The cubic root of 9420981 is about 211.2023320665.

It can be divided in two parts, 9420 and 981, that added together give a palindrome (10401).

The spelling of 9420981 in words is "nine million, four hundred twenty thousand, nine hundred eighty-one".