9816541 has 4 divisors (see below), whose sum is σ = 11218912. Its totient is φ = 8414172.

The previous prime is 9816533. The next prime is 9816551. The reversal of 9816541 is 1456189.

9816541 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9816541 - 2³ = 9816533 is a prime.

It is a super-4 number, since 4×9816541⁴ (a number of 29 digits) contains 4444 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9816497 and 9816506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9816551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701175 + ... + 701188.

It is an arithmetic number, because the mean of its divisors is an integer number (2804728).

Almost surely, 2^9816541 is an apocalyptic number.

It is an amenable number.

9816541 is a deficient number, since it is larger than the sum of its proper divisors (1402371).

9816541 is a wasteful number, since it uses less digits than its factorization.

9816541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402370.

The product of its digits is 8640, while the sum is 34.

The square root of 9816541 is about 3133.1359689614. The cubic root of 9816541 is about 214.1178275051.

The spelling of 9816541 in words is "nine million, eight hundred sixteen thousand, five hundred forty-one".