9543861 has 12 divisors (see below), whose sum is σ = 13816192. Its totient is φ = 6348456.

The previous prime is 9543847. The next prime is 9543901. The reversal of 9543861 is 1683459.

It is not a de Polignac number, because 9543861 - 2⁵ = 9543829 is a prime.

It is a Duffinian number.

9543861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9543811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4590 + ... + 6336.

Almost surely, 2^9543861 is an apocalyptic number.

It is an amenable number.

9543861 is a deficient number, since it is larger than the sum of its proper divisors (4272331).

9543861 is a wasteful number, since it uses less digits than its factorization.

9543861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360 (or 2357 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 9543861 is about 3089.3140015220. The cubic root of 9543861 is about 212.1166217842.

It can be divided in two parts, 9543 and 861, that added together give a square (10404 = 102²).

The spelling of 9543861 in words is "nine million, five hundred forty-three thousand, eight hundred sixty-one".