9421543 has 2 divisors, whose sum is σ = 9421544. Its totient is φ = 9421542.

The previous prime is 9421541. The next prime is 9421567. The reversal of 9421543 is 3451249.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9421543 - 2¹ = 9421541 is a prime.

Together with 9421541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9421541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4710771 + 4710772.

It is an arithmetic number, because the mean of its divisors is an integer number (4710772).

Almost surely, 2^9421543 is an apocalyptic number.

9421543 is a deficient number, since it is larger than the sum of its proper divisors (1).

9421543 is an equidigital number, since it uses as much as digits as its factorization.

9421543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 9421543 is about 3069.4532086350. The cubic root of 9421543 is about 211.2065316769.

It can be divided in two parts, 942 and 1543, that added together give a triangular number (2485 = T₇₀).

The spelling of 9421543 in words is "nine million, four hundred twenty-one thousand, five hundred forty-three".