8542943 has 2 divisors, whose sum is σ = 8542944. Its totient is φ = 8542942.

The previous prime is 8542927. The next prime is 8542973. The reversal of 8542943 is 3492458.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8542943 - 2⁴ = 8542927 is a prime.

It is a d-powerful number, because it can be written as 8 + 5⁷ + 4⁶ + 2²³ + 9 + 4⁸ + 3⁸ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8542973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4271471 + 4271472.

It is an arithmetic number, because the mean of its divisors is an integer number (4271472).

Almost surely, 2^8542943 is an apocalyptic number.

8542943 is a deficient number, since it is larger than the sum of its proper divisors (1).

8542943 is an equidigital number, since it uses as much as digits as its factorization.

8542943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 8542943 is about 2922.8313328004. The cubic root of 8542943 is about 204.4258613015.

The spelling of 8542943 in words is "eight million, five hundred forty-two thousand, nine hundred forty-three".